https://www.sjvtandv.com/blog daily 0.75 2026-03-16 https://www.sjvtandv.com/blog/how-to-make-and-set-up-flatheaded-borer-traps-in-walnuts monthly 0.5 2026-03-16 https://www.sjvtandv.com/blog/uc-is-leading-the-sunpreme-and-other-natural-dov-raisin-research-with-more-research-needed monthly 0.5 2026-02-25 https://www.sjvtandv.com/blog/drones-in-agriculture-benefits-and-regulations-to-know-before-you-fly monthly 0.5 2026-02-03 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/3ad734c8-b443-418e-b2b6-28f3569e99b4/2_both.png Blog - Drones in Agriculture: Benefits and Regulations to Know Before You Fly - Make it stand out Figure 1. Bindweed growing over a grapevine canopy (top). Shoot stunting caused by grapevine trunk disease (bottom). https://www.sjvtandv.com/blog/research-updates-on-almond-red-leaf-blotch monthly 0.5 2026-01-30 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/4e84966c-2d4d-41b9-ae8f-6226a6edc526/Figure+1+-+RLB+symptoms.jpg Blog - Research updates on almond Red Leaf Blotch - Make it stand out Figure 1. Early symptoms of Red Leaf Blotch include small, pale yellowish spots or blotches (left: early-May). The leaf blotches turn orange to reddish-brown as the season progresses (center: mid-June; right: late July). [Photo credits: Renaud Travadon]. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/da1a806d-ed1e-408c-bd66-45bc01aed13b/Figre+1+-+Sporulation+dynamics+and+peaks+of+sporulation+RLB.png Blog - Research updates on almond Red Leaf Blotch - Make it stand out Figure 2. Sporulation dynamics and peaks of sporulation of Polystigma amygdalinum during the 2025 growing season in an almond orchard located in Stockton, California. Peaks of sporulation correlated with precipitation, indicating the optimal timings of fungicide applications prior to rain. https://www.sjvtandv.com/blog/building-sustainable-vineyards-the-role-of-rootstocks-scions-on-site-adaptation monthly 0.5 2025-10-27 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/cd6c50a7-e7bb-4ca7-9924-0faa1f00d018/Fig+1+Drone+imagery+of+the+Oakville+Rootstock+x+Clone+trial.png Blog - Building Sustainable Vineyards: The Role of Rootstocks, Scions, on Site Adaptation - Make it stand out Figure 1. Drone imagery of the Oakville Rootstock x Clone trial showing A) standard color imagery, B) digital canopy model used to estimate canopy size, and C) NDVI used to estimate vine vigor. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/35a1d1e0-5e9f-4a14-8447-30dfd0f9b609/Tbl+1+Canopy+characteristics+and+temperature+metrics+for+four+rootstocks.png.jpg Blog - Building Sustainable Vineyards: The Role of Rootstocks, Scions, on Site Adaptation - Make it stand out Table 1. Canopy characteristics and temperature metrics for four rootstocks (5BB, 110R, 3309C, and 420A) and three scion clones (CS8, CS65, and CS15) measured on October 5, 2024. Metrics include canopy surface area (m²), vegetation indices (NDVI, GNDVI, NDRE), and canopy temperatures (mean and maximum). Statistical significance was determined using two-way ANOVA followed by Duncan’s Multiple Range post-hoc test. Significant differences (p < 0.05) are denoted by different letters within rootstock and clone groups, highlighting the effects of rootstock and clone on canopy stress and vigor. Rootstock x Clone interactions were not significant for these parameters. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/cddabed6-bf02-41f6-9435-c5663c6d9dd3/Tbl+2+Yield+components+for+four+rootstocks.png Blog - Building Sustainable Vineyards: The Role of Rootstocks, Scions, on Site Adaptation - Make it stand out Table 2. Yield components for four rootstocks (5BB, 110R, 420A, and 3309C) and three scion clones (CS8, CS15, and CS65) across the 2022, 2023 and 2024 growing seasons. Metrics include yield (kg/vine), cluster number per vine, and average cluster weight (g). Statistical significance was determined using two-way ANOVA followed by Duncan’s Multiple Range post-hoc test. Significant differences (p < 0.05) are denoted by different letters within rootstock and clone groups, highlighting the effects of rootstock and clone on production metrics. Rootstock x Clone interactions were not significant for these parameters. https://www.sjvtandv.com/blog/spotted-lanternfly-californias-next-problematic-invader monthly 0.5 2025-07-07 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/7c16ec33-1a71-4a89-b166-4f3995bb187b/image+1+spotted+lanterfly+infestation+map.png Blog - Spotted Lanternfly, California's Next Problematic Invader - Make it stand out Image 1. September 2024 Spotted Lanternfly Infestation Map. Red is Counties with infestations under quarantine, Yellow is Counties with infestations not under quarantine, and Purple is Counties with at least one sighting but no known Infestation. Map and data from New York State Integrated Pest Management webpage, part of Cornell University College of Agriculture and Life Sciences (https://cals.cornell.edu/new-york-state-integrated-pest-management/outreach-education/whats-bugging-you/spotted-lanternfly/spotted-lanternfly-reported-distribution-map) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/eed76fa1-93d1-45da-8412-ef85f514a35d/image+2+potential+distribution+of+spotted+lanternfly.jpg.png Blog - Spotted Lanternfly, California's Next Problematic Invader - Make it stand out Image 2. Potential distribution of Spotted Lanternfly across the United States using climatic data. Image from https://entomologytoday.org/2019/10/03/invasive-spotted-lanternfly-large-potential-range-united-states-beyond/ https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/ead8abd0-2ddd-4b02-9e65-cdd6666c1d2c/image+3+spotted+lanturn+fly+life+cycle.png Blog - Spotted Lanternfly, California's Next Problematic Invader - Make it stand out Image 3. Spotted Lanternfly life cycle. Image from: https://extension.psu.edu/spotted-lanternfly-what-to-look-for https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/8c5b38f1-9f89-418d-beaa-c60dcb96c8b0/image+4+Spotted+Lanternfly+Identification+Images.jpg Blog - Spotted Lanternfly, California's Next Problematic Invader - Make it stand out Image 4. Spotted Lanternfly Identification Images. A. Egg mass, B. Instar 1- 3, C. Instar 4, D. Adult with closed wings, E. Adult with exposed underwings. Image from Penn State Extension: https://extension.psu.edu/spotted-lanternfly-what-to-look-for https://www.sjvtandv.com/blog/effect-effects-of-heat-stress-on-grape-production-in-the-san-joaquin-valley monthly 0.5 2025-07-03 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/2dc907cb-ccb1-4c0a-9a8d-c683fe967447/Figure+1.png Blog - Effect of Heat Stress on Grape Production in the San Joaquin Valley - Make it stand out Figure 1. Daily Max ambient temperature (Max Temp) and Max temperature inside canopy (Max CanT) at UC Kearney REC Selma Pete vineyard between 06/01/24 and 08/01/24. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1751555268257-SY53Q20Q0DUBQSCTJS83/Photo+1+Poor+fruit+set+and+early+bunch+necrosis.jpeg Blog - Effect of Heat Stress on Grape Production in the San Joaquin Valley - Photo 1. Poor fruit set and early bunch necrosis. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1751555268152-YW1HTOISM83AB8Y2742Z/Photo+2+Shot+berries+on+Pinot+Noir.jpeg Blog - Effect of Heat Stress on Grape Production in the San Joaquin Valley - Photo 2. Shot berries on Pinot Noir. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1751555273719-R88EQ67NUBE64U7ZNOMR/Photo+3+Sunburn+on+Thompson+Seedless.jpg Blog - Effect of Heat Stress on Grape Production in the San Joaquin Valley - Photo 3. Sunburn on Thompson Seedless. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1751555415600-95Z7C1CAX6V8FMYHS287/Photo+4+Sunburn+on+Cabernet+Sauvignon.jpeg Blog - Effect of Heat Stress on Grape Production in the San Joaquin Valley - Photo 4. Sunburn on Cabernet Sauvignon. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1751555417398-RE2C186QC1CI36YTJW8D/Photo+5a+Shade+Cloth.jpeg Blog - Effect of Heat Stress on Grape Production in the San Joaquin Valley - Photo 5a. Shade Cloth. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1751555427323-5MO4SPNHNLQSPH9T53ET/Photo+5b+Shade+Film.jpeg Blog - Effect of Heat Stress on Grape Production in the San Joaquin Valley - Photo 5b. Shade film. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1751555430498-C1NOYVOJUWLZQOC3NO0W/Photo+6+CaCO3+spray.jpeg Blog - Effect of Heat Stress on Grape Production in the San Joaquin Valley - Photo 6. CaCO3 spray. https://www.sjvtandv.com/blog/first-detection-of-red-leaf-blotch-a-new-disease-of-almond-in-california-c4hmj-aeg62 monthly 0.5 2025-04-21 https://www.sjvtandv.com/blog/first-detection-of-red-leaf-blotch-a-new-disease-of-almond-in-california-c4hmj monthly 0.5 2025-04-21 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/be211bca-d8b6-4db0-9e2a-f9c2877e2ffa/An+established+table+grape+vineyard+with+palmer+amaranth+and+morning+glory+weeds.jpg Blog - Vineyard Weed Control - Make it stand out Image 1. An established table grape vineyard with palmer amaranth and morning glory weeds. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1018deca-4069-4a69-a584-eff2b5b3960c/A+newly+planted+table+grape+vineyard+and+site+of+an+herbicide+trial.jpg Blog - Vineyard Weed Control - Make it stand out Image 2. A newly planted table grape vineyard and site of an herbicide trial. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/c7b807c4-8a7d-46a4-b93b-9fb712ef25b3/Some+common+weeds+found+in+San+Joaquin+Valley+Vineyards.png Blog - Vineyard Weed Control - Make it stand out Table 1. Some common weeds found in San Joaquin Valley Vineyards https://www.sjvtandv.com/blog/new-pest-management-advisor-wants-to-hear-from-you monthly 0.5 2025-02-26 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1038394d-047d-4c2f-9774-7a7cc69d088a/Idong+needs+assessment+QR.jpg Blog - New Pest Management Advisor wants to hear from you! - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/invitation-to-participate-in-a-survey-on-weed-management-in-perennial-specialty-crops monthly 0.5 2025-02-19 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/7310967b-923d-4082-9c8e-c933a2c38cf4/SCRI+Survey+QR+Code.png Blog - Invitation to Participate in a Survey on Weed Management in Perennial Specialty Crops - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/yield-benefits-from-a-new-strategy-using-naphthaleneacetic-acid-to-manage-olive-crop-load monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/2fb9ffd3-4030-41b5-b975-c580ab0066e5/NAA+1.png Blog - Yield benefits from a new strategy using naphthaleneacetic acid to manage olive crop load - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/74ed1ec6-19f0-404c-b70d-294284d1313b/NAA+2.png Blog - Yield benefits from a new strategy using naphthaleneacetic acid to manage olive crop load - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/recording-of-the-carpophilus-truncatus-information-session monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/new-anr-publication-olive-production-manual-for-oil monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/building-your-own-tensiometer-for-monitoring-soil-water-tension monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/carpophilus-truncatus-information-session-july-9 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/5aa78017-623b-49a3-a454-a4eeee8d08d5/Carpophilus+flier+final+CA.png Blog - Carpophilus truncatus information session July 9 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/first-detection-of-red-leaf-blotch-a-new-disease-of-almond-in-california monthly 0.5 2026-01-30 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/777ffa94-bbff-47df-855f-00ef9459048f/Slide1.JPG Blog - First detection of Red Leaf Blotch: a new disease of almond in California - Make it stand out Figure 1. Early symptoms of red leaf blotch include small, pale yellowish spots or blotches that affect both sides of the leaves. (Picture credits: Alejandro Hernandez and Florent Trouillas). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/48bfb0e3-e32f-4bc1-bfb7-40d182dd4cb8/Slide2.JPG Blog - First detection of Red Leaf Blotch: a new disease of almond in California - Make it stand out Figure 2. Advanced symptoms of red leaf blotch include larger, yellow-orange blotches (1 to 2 cm) that turn reddish-brown in their center. (Picture credits: Alejandro Hernandez and Florent Trouillas). https://www.sjvtandv.com/blog/sara-rosenberg-joins-ucce-as-regenerative-agriculture-farm-advisor monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/8582f3df-3bed-4b16-96b5-54bb7e49a2d3/farm+photo.jpg Blog - Sara Rosenberg joins UCCE as regenerative agriculture farm advisor - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/53983b9e-e0c4-4abf-92a1-a097d09a0c9b/4BC581DE-5C96-4EBA-BAD4-8E456DE9D8CE.JPG Blog - Sara Rosenberg joins UCCE as regenerative agriculture farm advisor - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/early-season-leaf-sampling-can-help-you-stay-on-your-fertilization-target monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a356a80d-b1a1-4e8c-aeaa-97b99b6e8b9e/early+sampling+1.png Blog - Early season leaf sampling can help you stay on your fertilization target - Make it stand out Table 1: summary of forms of nitrogen and behavior in soils. 1There is evidence that plants can take up amino acids, however it is unlikely that they are a significant source of nitrogen as they would be rapidly mineralized by soil bacteria 2Urea is very mobile until it is mineralized into ammonium 3Some soil organic matter is very resistant to breakdown by soil bacteria and will remain stable for decades or longer. This can be a source of nitrogen, however we are referring to more easily broken down sources like composts, manures, and cover crops https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/3a90418b-a8e0-42be-b131-2b2762b000ff/Early+sampling+2.jpg Blog - Early season leaf sampling can help you stay on your fertilization target - Make it stand out Image 1: leaf nutrient deficiencies in an ON branch, resulting from such strong demand from developing nuts that stored nitrogen and potassium are being pulled from leaves. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/57f678ca-2dbb-4db1-a95e-cf23a34ef215/Early+sampling+3.png Blog - Early season leaf sampling can help you stay on your fertilization target - Make it stand out Figure 2: The pre-season tab and fertilization suggestions https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a5ddc85f-e848-4b67-b463-4fd818dffa4a/Early+sampling+4.png Blog - Early season leaf sampling can help you stay on your fertilization target - Make it stand out Figure 3: The mid-season update tab showing suggested fertilization rates based off of adequate early season nitrogen values https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1799e147-d3cc-40ac-8901-5dda5dabbeff/Early+sampling+5.png Blog - Early season leaf sampling can help you stay on your fertilization target - Make it stand out Figure 4: The mid-season update tab showing suggested nitrogen and potassium fertilization rates based off of low leaf nitrogen levels https://www.sjvtandv.com/blog/carbohydrates-dormancy-and-yield-in-pistachios monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/f9451dcd-93c6-4d5a-a050-0807571bccfb/Carbohydrate+1.png Blog - Carbohydrates, dormancy, and yield in pistachios - Make it stand out Figure 1. Average concentration of NSC (sugars and starches) from more than 40 pistachio orchards from January 2017 to December 2019. The center bar of each green box shows the average for that month, the box shows the zone where half of all the values from that month lie (25% above and below the average) and the whisker lines show more extreme values. Grey shading reflects the dormancy period. (Davidson et al., 2021. Sci. Reports) https://www.sjvtandv.com/blog/general-irrigation-tips-for-young-pistachios monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/6d749658-c7cd-43f8-8370-f97f8b756108/Irrigation+1.jpg Blog - General Irrigation Tips for Young Pistachios - Make it stand out Figure 1 Button dripper installed on an irrigation lateral https://www.sjvtandv.com/blog/silverleaf-nightshade-in-young-pistachio-orchards monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/c14a2740-6138-43f2-aff8-3b4e712b5b25/Nightshade+1.png Blog - Silverleaf Nightshade in Young Pistachio Orchards - Make it stand out Figure 1. From left to right: Silverleaf Nightshade (Solanum Elaegnifolium), Black Nightshade (Solanum Nigrum), Hairy Nightshade (Solanum Physalifolium). Weeds in the nightshade family can be found in orchards and in annual crops. Silverleaf Nightshade produces silver green leaves, violet flowers, and yellow berries. Black and hairy nightshades produce white flowers and black berries. UC IPM. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/bb142eef-d3cf-473e-8bd3-f0744bb0e404/Nightshade+2.jpg Blog - Silverleaf Nightshade in Young Pistachio Orchards - Make it stand out Figure 2. Silverleaf Nightshade (Solanum Elaeagnifolium) in a Pistachio Orchard in Tulare County. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/4b269392-4858-4857-b374-a60725944837/Nightshade+3.png Blog - Silverleaf Nightshade in Young Pistachio Orchards - Make it stand out Figure 3. Silverleaf Nightshade (Solanum Elaeagnifolium) CA Distribution Map. The blue dots show the distribution of Silverleaf nightshade in California. CALFLORA 2024 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/0cd89ffc-082b-48cc-bd4a-2037292bb08c/Nightshade+4.jpg Blog - Silverleaf Nightshade in Young Pistachio Orchards - Make it stand out Figure 4. Silverleaf Nightshade (Solanum Elaeagnifolium) Life Cycle. NSW Department of Primary Industries. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/49e9cda9-83a9-4353-881b-644c16c83611/Nightshade+5.png Blog - Silverleaf Nightshade in Young Pistachio Orchards - Make it stand out Table 1. Herbicides registered for use in CA tree and vine crops. https://wric.ucdavis.edu/. Mention of a trade name is not an endorsement or recommendation. Always check the label before applying. https://www.sjvtandv.com/blog/introducing-our-new-ipm-advisor-idongesit-u-mokwunye monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/trialing-nematode-resistant-rootstocks-for-use-in-the-san-joaquin-valley monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/74bf9811-0744-42de-9b40-1ca06076132a/Nematode+1.png Blog - Trialing Nematode Resistant Rootstocks for Use in The San Joaquin Valley - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/ef87ef99-1609-4024-8b8b-b14b5caeae8d/Nematode+2.png Blog - Trialing Nematode Resistant Rootstocks for Use in The San Joaquin Valley - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a5034721-8dda-43c0-9def-bf41a62ea214/Nematode+3.png Blog - Trialing Nematode Resistant Rootstocks for Use in The San Joaquin Valley - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/61f9620e-0ac4-4a9e-87d8-9364e7fefbc2/Nematode+4.png Blog - Trialing Nematode Resistant Rootstocks for Use in The San Joaquin Valley - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/79af4df1-3e38-4341-a4e1-270373200976/Nematode+5.png Blog - Trialing Nematode Resistant Rootstocks for Use in The San Joaquin Valley - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/63c86d5f-2ff7-4d6d-9e38-3c3bffe60892/Nematode+6.png Blog - Trialing Nematode Resistant Rootstocks for Use in The San Joaquin Valley - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/impacts-of-rootstocks-on-performance-and-fruit-quality-of-mature-autumn-king-vines monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/8fad9176-89d3-4424-a60a-bca73b4a16d0/Grape+rootstock+1.png Blog - Impacts of Rootstocks on Performance and Fruit Quality of Mature ‘Autumn King’ Vines - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/7537f43a-af97-4ae8-aaae-4c3fbc0801b0/Grape+rootstock+2.png Blog - Impacts of Rootstocks on Performance and Fruit Quality of Mature ‘Autumn King’ Vines - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/ae0ecabf-d3d0-419a-96b8-0fcd5b2f79d3/Grape+rootstock+3.png Blog - Impacts of Rootstocks on Performance and Fruit Quality of Mature ‘Autumn King’ Vines - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/5bd7fcb0-e07b-42d0-8b32-78176b3cec6b/Grape+rootstock+4.png Blog - Impacts of Rootstocks on Performance and Fruit Quality of Mature ‘Autumn King’ Vines - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/table-grapes-needs-assessment-summary monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/ec5b2c06-2d8d-4738-b1b6-042b92391d91/Grape+needs+1.png Blog - Table Grapes Needs Assessment Summary - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/5fb77afb-2198-41dc-8ca6-ac17aa94e421/Grape+needs+2.png Blog - Table Grapes Needs Assessment Summary - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/402b33ec-d15a-48c3-8548-c0f6abcc8681/Grape+needs+3.png Blog - Table Grapes Needs Assessment Summary - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/d42b0d79-452a-4b05-816c-a5453c713163/Grape+needs+4.png Blog - Table Grapes Needs Assessment Summary - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a78ade5a-e9aa-47c1-a126-b1c3ccc45531/Grape+needs+5.png Blog - Table Grapes Needs Assessment Summary - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/818797a2-71ed-40de-b200-20bdad655ad9/Grape+needs+6.png Blog - Table Grapes Needs Assessment Summary - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a5de797d-d144-452a-918d-a539ed651818/Grape+needs+7.png Blog - Table Grapes Needs Assessment Summary - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/b657f399-c8dd-4847-bbd7-e97039be85fe/Grape+needs+8.png Blog - Table Grapes Needs Assessment Summary - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/41c65ce7-235e-41e2-a77a-e712b6c5f452/Grape+needs+9.png Blog - Table Grapes Needs Assessment Summary - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/f669a3d8-4755-4236-a4f4-3ec4ea154df1/Grape+needs+10.png Blog - Table Grapes Needs Assessment Summary - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/effect-of-variety-cordon-height-and-irrigation-on-mechanical-pruned-vineyard-in-southern-sjv monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/da64287c-15b9-4ee6-9799-0034b497cf5f/Pruning+fig+1.png Blog - Effect of Variety, Cordon Height, and Irrigation on Mechanical Pruned Vineyard in Southern SJV - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/0cfecc31-6215-401f-81da-3495ee16062b/Pruning+fig+2.jpg Blog - Effect of Variety, Cordon Height, and Irrigation on Mechanical Pruned Vineyard in Southern SJV - Make it stand out Figure 1. Vines on low and high cordons side by side https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/12eb1e40-fc80-4dd2-b9f9-f5567b3a2bad/Pruning+fig+3.png Blog - Effect of Variety, Cordon Height, and Irrigation on Mechanical Pruned Vineyard in Southern SJV - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/7b441af7-1a78-48d6-b871-afd16fc0f915/Pruning+fig+4.png Blog - Effect of Variety, Cordon Height, and Irrigation on Mechanical Pruned Vineyard in Southern SJV - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/tackle-summer-bunch-rot-and-sour-rot-now monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/59b8a949-0711-4e15-bc09-c390aea25382/Bunch+rot+fig+1.jpg Blog - Tackle Summer Bunch Rot and Sour Rot Now - Make it stand out Image 1 Unharvested grapes affected by summer bunch rot. These can be a source of inoculum in the next season if allowed to remain in the vineyard. Diseased fruit should be cut off with final pruning, placed in the row middles, and incorporated into the soil before the start of bud burst in spring to reduce disease pressure next season. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/bcee7ba9-02d2-449e-b8be-94c4bbe5b062/Bunch+rot+fig+2.jpg Blog - Tackle Summer Bunch Rot and Sour Rot Now - Make it stand out Image 2 Shoot thinning early in the season promotes air circulation, light infiltration and increases spray penetration to help decrease fungal diseases throughout the of the season. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/78f63f02-b5af-4a51-8295-be072d40e0bd/Bunch+rot+fig+3.png Blog - Tackle Summer Bunch Rot and Sour Rot Now - Make it stand out A) Botrytis and B) Sour rot on clusters of Riesling. While similar in appearance due to oxidative browning of affected berries, sour rot can be easily distinguished by the leakage of fluid and vinegar odor emitted from rotting fruit. https://www.sjvtandv.com/blog/powdery-mildew-in-grapes-alert monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/phosphorus-fertilization-is-beneficial-for-newly-planted-almond-trees monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/12175454-0300-4d20-a5c2-8a766bc02bfc/P+table+1.png Blog - Phosphorus fertilization is beneficial for newly planted almond trees - Make it stand out Table 1: Removal rates for commonly grown California orchard crops. Source: https://www.cdfa.ca.gov/is/ffldrs/frep/FertilizationGuidelines/ https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/aefbe6d2-5608-488d-8daa-5a37c90af488/P+table+2.png Blog - Phosphorus fertilization is beneficial for newly planted almond trees - Make it stand out Table 2: Soil P test interpretation values. Note: these do not take into account specific crop soil critical levels. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/bee4ef93-14b6-4cd8-8d19-bebebb769f9d/P+table+3.png Blog - Phosphorus fertilization is beneficial for newly planted almond trees - Make it stand out Table 3: Fertilizer treatments and application rates in the West Chowchilla trial. Fertilizer treatments were only applied in the first year, in addition to the grower’s application of 10.5 lbs N/acre through the irrigation system and 1 lb N, 2.1 lb P, and 4.3 lbs of K/acre split into two foliar sprays. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/92018053-f510-41bd-bf77-f3348910a341/P+fig+1.png Blog - Phosphorus fertilization is beneficial for newly planted almond trees - Make it stand out Figure 1: Changes in tree trunk cross sectional area over two years of growth in Padre trees planted on Nemaguard. Error bars indicate the 95% confidence interval. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/65a4779d-f48a-4a4f-8e38-e8d5cb076407/P+fig+2.png Blog - Phosphorus fertilization is beneficial for newly planted almond trees - Make it stand out Figure 2: Changes in trunk cross sectional area for Monterey trees on Viking rootstock. Error bars indicate 95% confidence intervals. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/172af786-5587-4909-aac9-0b5221e034ed/P+table+4.png Blog - Phosphorus fertilization is beneficial for newly planted almond trees - Make it stand out Table 4: A breakdown of the Kearney REC experiments https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/db906027-677a-40c5-8bd7-30ecc882da80/P+fig+3.png Blog - Phosphorus fertilization is beneficial for newly planted almond trees - Make it stand out Figure 3: Nonpareil, planted on Nemaguard in 2021, response to fertilizer treatments in Kearney REC experiment 1. Fumigation did not change the response to fertilization treatments, so results are combined across fumigation treatments. Error bars indicate 95% confidence intervals. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/80a56d4b-2bae-406a-a33d-d5c40843d7e1/P+fig+4.png Blog - Phosphorus fertilization is beneficial for newly planted almond trees - Make it stand out Figure 4: Nonpareil, planted on Nemaguard in May 2021, response to fertilizer treatments in Kearney REC Experiment 2. Fumigation did not change the response to fertilization treatments, so results are combined across fumigation treatments. Error bars indicate 95% confidence intervals. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/8468cc7e-0799-43dd-878b-8f73dfad756c/P+fig+5.png Blog - Phosphorus fertilization is beneficial for newly planted almond trees - Make it stand out Figure 5: Monterey, planted on Nemaguard in May 2021, response to fumigation and fertilizer in Kearney REC Experiment 2. The addition of wood chips did not affect results, so the analyzed results were combined over wood chip treatments. Error bars indicate 95% confidence intervals. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/676caf2e-0c47-490e-9bb9-d6afd0d559d9/P+fig+6.jpg Blog - Phosphorus fertilization is beneficial for newly planted almond trees - Make it stand out Figure 6: Kearney REC Experiment 1 https://www.sjvtandv.com/blog/statewide-pistachio-day-videos-now-available monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/pre-bloom-foliar-boron-application-on-olive-may-improve-yield monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/ce048087-923e-4935-a18c-a11f3496109d/Olive+bloom+2.png Blog - Pre-bloom foliar boron application on olive may improve yield - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/6e42478c-94b0-462e-9de5-9f620a951e67/Olive+bloom+3.png Blog - Pre-bloom foliar boron application on olive may improve yield - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/5bc0e4c2-653c-473c-b066-c9a582f8700d/Olive+bloom+1.png Blog - Pre-bloom foliar boron application on olive may improve yield - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/bfa37878-dd19-4654-8a96-56071b892e1e/Olive+bloom+4.jpg Blog - Pre-bloom foliar boron application on olive may improve yield - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/risk-of-bacterial-blast-of-almond-is-high-when-freezing-and-wet-conditions-occur-during-bloom monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/f27dec6f-8a1f-4b1e-b405-ad79f67bc1d4/Bacterial+blast+1.jpg Blog - Risk of bacterial blast of almond is high when freezing and wet conditions occur during bloom - Make it stand out Fig. 1. Blossom blast resulting from an infection caused by Pseudomonas syringae pv. syringae. Blossoms wither, turn brown and remain attached to the twig. Leaves may develop reddish or necrotic spots with chlorotic halos. Shoot infections may result in death of the entire spur and lead to twig cankers. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/5f3f1cda-f6f5-4f31-bfde-68d7c61c1489/Bacterial+blast+2.jpg Blog - Risk of bacterial blast of almond is high when freezing and wet conditions occur during bloom - Make it stand out Fig. 2. Bacterial blast causing necrotic lesion with a surrounding chlorotic halo on young, developing leaves. https://www.sjvtandv.com/blog/iron-deficiency-in-fruit-and-nut-crops-in-california monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/e3c31a92-f5b6-4559-b2b7-19291cc2904c/Iron+1.png Blog - Iron Deficiency in Fruit and Nut Crops in California - Make it stand out Table 1: Amount of soil sulfur needed to modify a loam soil. Adapted from the Western Fertilizer Handbook, 9th Edition. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/629e1349-43a9-48da-bfcb-b6e0967c4f6f/Blake+Sanden.+Iron+Chlorosis+.JPG Blog - Iron Deficiency in Fruit and Nut Crops in California - Make it stand out Iron chlorosis of almond. Image courtesy of Blake Sanden https://www.sjvtandv.com/blog/salt-leaching-in-orchards-and-vineyards monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/6c267ab4-f24b-4916-923d-23d280603969/Leaching+1.png Blog - Salt Leaching in Orchards and Vineyards - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/5fcec2af-3589-4719-9342-26adf7472071/Leaching+2.png Blog - Salt Leaching in Orchards and Vineyards - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/f8d0b048-5fcd-4b87-a3e9-4c89446de310/leaching+3.png Blog - Salt Leaching in Orchards and Vineyards - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a158d7f7-ffb7-4b60-b5b6-be2631ab0eb7/Leaching+4.png Blog - Salt Leaching in Orchards and Vineyards - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/a-retrospective-look-at-2023-navel-orangeworm-damage-at-harvest-in-almonds monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/0d255218-f609-4635-8548-98ee9599a172/NOW+damage+2023.png Blog - A Retrospective Look at 2023: Navel Orangeworm Damage at Harvest in Almonds - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/5d3abd67-c751-4843-8430-34d07ff7f40d/NOW+damge+2023+2.png Blog - A Retrospective Look at 2023: Navel Orangeworm Damage at Harvest in Almonds - Make it stand out Figure 1. Seasonal navel orangeworm phenology in almond orchards in the Modesto area, 2023. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/36d22d52-9a4f-40d2-8485-3aae7c8948fd/NOW+damage+2023+3.png Blog - A Retrospective Look at 2023: Navel Orangeworm Damage at Harvest in Almonds - Make it stand out Figure 2. Navel orangeworm and Carpophilus beetle infestation damage symptoms in almonds. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/0d2a5e47-ec57-4678-b286-3a0af8662b1c/NOW+damage+2023+4.png Blog - A Retrospective Look at 2023: Navel Orangeworm Damage at Harvest in Almonds - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/tight-budget-consider-not-pruning-bearing-almond-orchards monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/5400dc5e-db9c-4ca6-b771-252c7e03430f/pruning+almonds.jpg Blog - Tight Budget? Consider Not Pruning Bearing Almond Orchards - Make it stand out *Yields are an average across all tree spacings and two rootstocks. https://www.sjvtandv.com/blog/new-almond-and-pistachio-pest-found-in-the-san-joaquin-valley monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/flower-thrips-and-odd-almond-foliar-and-stem-growth monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/77781b83-29d9-4c46-8f3b-1c88284cd7aa/Thrips1.png Blog - Flower Thrips and Odd Almond Foliar and Stem Growth - Make it stand out Figure 1. Photos of tips of leaf shoots in June 2023 showing shortened internodes and stunted leaves. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/310c9f8b-a1f2-41dc-bdd9-f5e4d878056e/Thrips2.png Blog - Flower Thrips and Odd Almond Foliar and Stem Growth - Make it stand out Figure 2. Adult sixspotted thrips (Scolothrips sexmaculatus). Bottom photo shows sixspotted thrips feeding on a spider mite (bottom photo source Jack Kelly Clark, UC IPM Program). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/e8b2cf3d-fd3c-4012-8c35-ca9e217b9e6e/Thrips3.png Blog - Flower Thrips and Odd Almond Foliar and Stem Growth - Make it stand out Photos of western flower thrips (Frankliniella occidentalis) collected in June 2023 from an experimental orchard in Parlier, CA. Top photo of thrips in hand after tap impacted end of stem into palm. Bottom photos of thrips collected into a glass jar, frozen, air dried, and then viewed using a microscope with 4.5 magnification. https://www.sjvtandv.com/blog/effects-of-vineyard-flooding monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/fa0258e1-6d6c-4e0c-9b87-78c00ea1456a/Flooding+1.png Blog - Effects of Vineyard Flooding - Make it stand out Image 1 San Joaquin Basin Precipitation for Oct 1, 2022 - April 5, 2023 (dark blue) compared to average (1991-2020) rainfall (light blue), and various other years. Downloaded from: https://cdec.water.ca.gov/snow_rain.html https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/c7d97873-8fd1-4cd3-bb92-d58a7fd9d2a6/Flooding+2.png Blog - Effects of Vineyard Flooding - Make it stand out Image 2 Tulare Basin Precipitation for Oct 1, 2022 - April 5, 2023 (dark blue) compared to average (1991-2020) rainfall (light blue), and various other years. Downloaded from: https://cdec.water.ca.gov/snow_rain.html https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/5ee93562-d85b-4c38-9a6d-37a6d0696b09/Flooding+3.png Blog - Effects of Vineyard Flooding Table 1 . Wet Feet Tolerance of various rootstocks. Table adapted from Wine Grape Varieties in California https://www.sjvtandv.com/blog/update-on-regional-almond-variety-trials-results-through-2022 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/9fabc249-e044-4379-b770-9713fd6bf9f7/RAVT1.png Blog - Update on Regional Almond Variety Trials - results through 2022 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/3f5a6a89-1f52-43b6-9555-ad797adfc460/RAVT2.png Blog - Update on Regional Almond Variety Trials - results through 2022 - Make it stand out Average Cumulative Yield for all Varieties Across all Three Trial Locations (3rd – 9th Leaf). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/ba0d3c14-e91b-44d6-891a-0bec742542ea/RAVT3.png Blog - Update on Regional Almond Variety Trials - results through 2022 - Make it stand out Photosynthetically Active Radiation (PAR) is a measure of tree canopy size. Trees with higher yield per PAR could be the highest yielding varieties when an orchard is at full canopy. Crackout is the kernel weight as a percentage of the combined weight of the hull, shell, and kernel. https://www.sjvtandv.com/blog/vineyard-weed-control-after-a-wet-winter monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/820de2b0-2ffa-4ce3-816b-8772f466807a/Weeds+1.png Blog - Vineyard Weed Control After a Wet Winter - Make it stand out Image 1. Rainfall totals in the portion of Sierra Nevada Mountain foothills that are the headwaters of the San Joaquin River. Current rainfall through February 14, 2023 (dark blue) is compared to 1982-1983 (green), 2016-2017 (light brown), 2018-2019 (blue), average rainfall across 1991-2020 (light blue), 1976-1977 (black), and 1923-1924 (dark brown). Image downloaded from: https://cdec.water.ca.gov/precipapp/get5SIPrecipIndex.action on February 14, 2023 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/e8c42e9d-8c18-4eed-84c1-aa61a969562e/weeds+2.png Blog - Vineyard Weed Control After a Wet Winter - Make it stand out Table 1. Rainfall totals near 10mm (0.4 inches) for CIMIS station 80 on the Campus of Fresno State for October 1, 2022, through February 14, 2023. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1755d997-f0b1-4964-8c0f-5f911e0a4b3e/Weeds+3.png Blog - Vineyard Weed Control After a Wet Winter Table 2. Water Solubility and Soil Adsorption of preemergent herbicides registered for use in California vineyards. https://www.sjvtandv.com/blog/erratic-bud-break-and-irregular-shoot-growth-in-spring-potential-causes-and-what-can-be-done-to-fix-them monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/c675cd5b-03c8-480c-acbf-00e68eb6a0d6/bud+break+1.jpg Blog - Erratic Bud Break and Irregular Shoot Growth in Spring: Potential Causes and What Can Be Done to Fix Them Figure 1. Photo of bud break status at the end of March in a table grape vineyard https://www.sjvtandv.com/blog/biostimulants-in-raisin-grapes monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/08fd3017-d73a-480f-93ec-dcbdd69e9e2c/Biostim+1.png Blog - Biostimulants in Raisin Grapes - Make it stand out Image 1. Biostimulant product being injected through the drip system https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/b182c2af-8d6c-4c72-937e-b7b45e28bad9/biostim+2.png Blog - Biostimulants in Raisin Grapes - Make it stand out Table 3. Year and location effect on yield and quality https://www.sjvtandv.com/blog/passive-measures-to-reduce-impacts-of-late-spring-frosts monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/20d8b1eb-b42b-4f2b-82d3-98adbafba32e/Frost+1.png Blog - Passive Measures to Reduce Impacts of Late Spring Frosts - Make it stand out Figure 1. Frost events can be classified as either radiative or advective. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/0ab5e564-a090-4f00-b573-d07b5ca50228/Frost+2.png Blog - Passive Measures to Reduce Impacts of Late Spring Frosts Figure 2. Relationship of air temperature and wind speed at 7am on April 12, 2022 from 38 weather stations located around Lodi, CA. Data provided by Lodi Winegrape Commission and Western Weather Group (https://lodi.westernweathergroup.com/) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/d8d09ff0-954f-41f3-823b-8ce30360deeb/Frost+3.png Blog - Passive Measures to Reduce Impacts of Late Spring Frosts - Make it stand out Figure 3. Example of vertical temperature differences within a vineyard during a typical inversion night in April 2007 recorded in Western Colorado. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/865f6b93-5488-4d76-8f3b-fc1607b38483/Frost+4.png Blog - Passive Measures to Reduce Impacts of Late Spring Frosts - Make it stand out Figure 4. Zoning of vineyard blocks management based on frost potential can be useful in simplifying operations to reduce risk. In this example a low-lying portion of the vineyard is identified as having the greatest potential for the accumulation of cold air and frost damage and designated as management Block 1. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/2df4e0b0-86e8-4ed7-a1ff-c2d2c7c103da/Wet+winter+4.jpg Blog - Passive Measures to Reduce Impacts of Late Spring Frosts Figure 5. Prepruning of dormant vines in Fresno County. Photo by George Zhuang https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/20afbe72-d41a-4b92-a673-740cb19d0d11/Frost+6.png Blog - Passive Measures to Reduce Impacts of Late Spring Frosts - Make it stand out Figure 6. The extent of frost damage is difficult to fully evaluate visually immediately after a late spring frost event. A) Wilted shoot tip after freezing and thawing is still green. B) A few days after a frost event damaged tissues show oxidative browning on leaves and clusters. Photos by George Zhuang https://www.sjvtandv.com/blog/almond-replant-field-day monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/69a6929f-af5a-4107-b4ce-b582530ea935/2023+KARE+almond+replant+day.jpg Blog - Almond replant field day - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/after-a-wet-winter-what-you-should-do-and-shouldnt-do monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/970fdd12-2e14-484f-8914-f8c323c0209f/Wet+winter+1.png Blog - After A Wet Winter: What You Should Do and Shouldn’t Do - Make it stand out Chart 1. Soil moisture content (water volumetric content measured as %) at soil depth of 12”, 24” and 36” along with precipitation and irrigation amount from September 2022 to February 2023 at UC IPM Caruthers weather station. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/4adeb656-3e92-45d9-adcf-2f060d9822c5/wet+winter+2.png Blog - After A Wet Winter: What You Should Do and Shouldn’t Do - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/68a3f0c8-b205-44ae-9aa4-e2dff76822d8/wet+winter+3.jpg Blog - After A Wet Winter: What You Should Do and Shouldn’t Do - Make it stand out Photo 1. Actively growing shoot tips and tendrils indicate no water stress. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/af108ca3-0768-44e3-81e6-9c0ffbbe9fc0/Wet+winter+4.jpg Blog - After A Wet Winter: What You Should Do and Shouldn’t Do - Make it stand out Photo 2. Mechanical pre-pruned vines followed by final hand pruning. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/6aee7ac5-e1f5-4924-82d4-1d7984b1f67d/wet+winter+5.png Blog - After A Wet Winter: What You Should Do and Shouldn’t Do - Make it stand out Photo 4. Left: dead cordon/arm. Middle: canker on the trunk. Right: leaf discoloration caused by Esca https://www.sjvtandv.com/blog/considerations-towards-the-start-of-irrigation-for-deciduous-trees monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a90aac74-1989-487e-a835-016f3b40a83a/Image_01_almond_dromancy_and_active.png Blog - Considerations towards the start of irrigation for deciduous trees - Make it stand out Photos of almond tree during dormancy period (left) and after leaf emergence (right). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a71ca53b-a1c1-4df0-b26e-d019373f3231/Image_02a_irrigation_2019-2020.png Blog - Considerations towards the start of irrigation for deciduous trees - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/6bccf134-7bba-43d3-be37-58775ceab596/Image_02b_irrigation_2020-2021.png Blog - Considerations towards the start of irrigation for deciduous trees - Make it stand out Images of approximate periods of dormancy and irrigation for almond site in Parlier, CA for the 2019-2020 (top) and 2020-2021 (bottom). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/51639551-1fb9-4d1e-afb8-d94d9d47da9c/Image_03_table.png Blog - Considerations towards the start of irrigation for deciduous trees - Make it stand out Table of different soil types’ range, average, and 50% allowable depletion of available soil moisture. Table adapted from UC ANR Almond Production Manual, 1996. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/96991794-06e6-4f09-8470-4fb7d2dc2ed2/Image_04_Concept_images_of_woody_tree_rootzone.png Blog - Considerations towards the start of irrigation for deciduous trees - Make it stand out Conceptual images of rootzone of woody trees. Left image more correct with majority of roots in first two feet of soil (adjusted from source, University of Minnesota Extension). Right image less correct with roots similar as above ground portions of trees (adjusted from source, Janice Austin). https://www.sjvtandv.com/blog/maderamerced-pistachio-day-is-april-13 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/86a797fa-a38b-479d-8997-6cc56da940f5/2023+Madera+Merced+pistachio+day.jpg Blog - Madera/Merced Pistachio Day is April 13 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/madera-county-almond-day monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/ad523018-b497-40cf-853a-4eb3cba68052/2023+Madera+County+almond+day.jpg Blog - Madera County almond day is March 23 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/almond-variety-trial-field-notes monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/how-late-is-too-late-for-now-winter-sanitation monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a7f57e87-0e7e-4c65-93d8-089f1fca3afd/mummy+1.jpg Blog - How Late is Too Late for NOW Winter Sanitation? - Make it stand out Photo of flooded Merced County almond field in January. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/05bad90a-1181-40eb-87ed-cbf690f85e13/mummy+2.png Blog - How Late is Too Late for NOW Winter Sanitation? - Make it stand out Photos of residual nuts after harvest. Left photo source Elizabeth Fichtner. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/368de4b1-aac8-4c0c-abf7-4ac3476816ba/mummy+3.png Blog - How Late is Too Late for NOW Winter Sanitation? - Make it stand out Photos of different dormant and bloom stages for almond buds and flowers. Green tip photo source Elizabeth Fichtner. Remaining photo source UC IPM. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/547382ac-9276-46e1-9789-d2bfea326184/mummy+4.png Blog - How Late is Too Late for NOW Winter Sanitation? - Make it stand out Photos of removed buds (top-left), shaker performing mummy shake with blue tarp on ground to capture removed buds (bottom-left), and buds captured after shake (right). Photos source Wes Asai. https://www.sjvtandv.com/blog/us-epa-proposed-changes-to-rodenticide-labels-for-agricultural-use-opportunity-for-public-comment monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/tri-county-walnut-day-is-february-2 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/statewide-pistachio-day-is-january-18 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/north-san-joaquin-valley-almond-day-is-january-12 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/winter-mummy-nut-sampling-in-almond-additional-insights-for-pest-management monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/154aa1dc-bb33-48ac-b7b5-d9fa586b53d8/Winter+sampling+1.jpg Blog - Winter Mummy Nut Sampling in Almond: Additional Insights for Pest Management - Make it stand out Photos of NOW damage (left) and larvae (right) from mummy nut sampling in January. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/52e2f61a-3f7a-4a92-bb0e-41b8b472d095/Winter+sampling+2.jpg Blog - Winter Mummy Nut Sampling in Almond: Additional Insights for Pest Management - Make it stand out Photos of almond kernels and removed hull and shells (bottom) and hollow kernel (top) from mummy nut sampling in January. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/c716e5d1-cfe0-4264-b2fe-eba1ceca4608/winter+sampling+3.jpg Blog - Winter Mummy Nut Sampling in Almond: Additional Insights for Pest Management - Make it stand out Photos of leaffooted bugs found in August of the previous calendar year in the orchard sampled in January. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/b6b68218-991c-4e3d-8e91-407a492edb6d/winter+sampling+4.jpg Blog - Winter Mummy Nut Sampling in Almond: Additional Insights for Pest Management - Make it stand out Photos of almond kernels with striped black and white organisms (left) and enlarged photos of organisms (right) from mummy nut sampling in January. Organisms later identified as a type of springtail (Collembola). https://www.sjvtandv.com/blog/off-type-golden-hills-trees-found-in-some-orchards-a-bud-sport-is-suspected monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a7b70397-a2ee-4a25-a25b-4e14bceede95/Off+type+1.png Blog - “Off-type” Golden Hills Trees Found in Some Orchards. A Bud Sport is Suspected - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a1039984-05d3-4868-874e-c6f55b6e7f64/Off+type+2.png Blog - “Off-type” Golden Hills Trees Found in Some Orchards. A Bud Sport is Suspected - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/66f0fa42-3df7-4997-9ece-e942f4a1bc6a/Off+type+3.png Blog - “Off-type” Golden Hills Trees Found in Some Orchards. A Bud Sport is Suspected - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/7a127229-a91b-4c82-8724-ba060d7ae791/Off+type+4.png Blog - “Off-type” Golden Hills Trees Found in Some Orchards. A Bud Sport is Suspected - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/exploring-navel-orangeworm-monitoring-tools-for-almond-orchards-under-mating-disruption monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/bbe635a7-0a8a-49e6-9232-2520b0870d37/NOW+1.png Blog - Exploring Navel Orangeworm Monitoring Tools for Almond Orchards Under Mating Disruption - Make it stand out Table 1. Cumulative numbers of navel orangeworm per trap for various at- tractants in almond orchards in upper San Joaquin Valley. *Numbers following the same letters within the column are not statistically different. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/db4625d7-8eeb-4df8-bfe8-89e4bcb43ff1/NOW+2.png Blog - Exploring Navel Orangeworm Monitoring Tools for Almond Orchards Under Mating Disruption - Make it stand out Table 2. Cumulative numbers of navel orangeworm per trap for various attractants in almond orchards in lower San Joaquin Valley. *Numbers following the same letters within the column are not statistically different https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/9c449641-21a2-4632-af3c-cb6374cc472c/NOW+3.jpg Blog - Exploring Navel Orangeworm Monitoring Tools for Almond Orchards Under Mating Disruption - Make it stand out Fig. 1. Average weekly navel orangeworm adults/trap captured in various attractant types in almond orchards in upper San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/bfd42a95-7498-41bd-9a94-f9f9eeb8422b/NOW+4.jpg Blog - Exploring Navel Orangeworm Monitoring Tools for Almond Orchards Under Mating Disruption - Make it stand out Fig. 2. Average weekly navel orangeworm adults/trap captured in various attractant types in almond orchards in upper San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/b3ccd49b-4b33-4ed0-afee-b44a82816de3/NOW+5.jpg Blog - Exploring Navel Orangeworm Monitoring Tools for Almond Orchards Under Mating Disruption - Make it stand out Fig. 3. Performance of different types of traps and lure combinations tested for cap- turing orangeworm adults in lower San Joaquin Valley. (Source: Burks et. Al 2020) https://www.sjvtandv.com/blog/gopher-management monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/nitrogen-management-in-walnuts monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/9eb4b2e6-41cd-44e4-bde3-090e638a0519/Walnut+N+1.png Blog - Nitrogen Management in Walnuts - Make it stand out Table 1. Amount of nitrogen applied in irrigation water as a function of nitrate-N (NO3-N), or nitrate (NO3-) concentration and the amount of irrigation water applied. Note: Agricultural laboratories report results of water analysis as either ppm N (NO3-N) or ppm NO3-. Multiply ppm NO3-N in the water by 2.72 to calculate the pounds of nitrogen applied per acre foot of applied irrigation water. Multiply ppm of NO3- by 0.614 to obtain pounds of nitrogen. Table extracted from Guide to Efficient Nitrogen Fertilizer Use in Walnut Orchards, UCANR publication #21623 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/31185611-ceec-4a9a-8f15-9877f02f2531/Walnut+N+2.png Blog - Nitrogen Management in Walnuts - Make it stand out Formula 1 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/df4a3a05-b597-4ba0-b8db-cd3f48127bd9/Walnut+N+3.png Blog - Nitrogen Management in Walnuts - Make it stand out Table 2. Components of various nitrogen (N) fertilizers and their characteristics. Notes: *L=Low, M=Medium, H=High. These terms are relative. All ammonium forms will leach after being converted to nitrate form. This takes place in 2 to 4 weeks in most soils Nitrate leaching can be severe on sandy soils and moderate on silt loams and clays. **UAN is often injected through low volume irrigation. ***If not incorporated or banded below the soil surface, volatilization losses can be high on soils with a pH over 7.0. Source: California Plant Health Association 2002, Cramer et. Al., 1986 and Guide to Efficient Nitrogen Use in California Walnut Orchards (UC ANR Publication 21623). https://www.sjvtandv.com/blog/managing-botryosphaeria-panicle-and-shoot-blight-of-pistachio monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/7ab954ec-d6e7-4da4-9852-39c585fba02a/pist+bot+1.jpg Blog - Managing botryosphaeria panicle and shoot blight of pistachio - Make it stand out Image 1: A branch killed by botryosphaeria panicle and shoot blight. This bud would have been infected in the fall, and died the following late spring/summer once temperatures increased. Photo credit: Themis Michailides. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/7ad798ef-871b-412e-a124-c5d655faee3d/pist+bot+2.png Blog - Managing botryosphaeria panicle and shoot blight of pistachio - Make it stand out Image 2: Early primary infections of leaves (left) and fruit (right). Photo source: Themis Michailides https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/6c02c5d6-a395-4aa3-ab05-317c33600a33/pist+bot+3.jpg Blog - Managing botryosphaeria panicle and shoot blight of pistachio - Make it stand out Image 3: Secondary infection of fruit, note the blackened appearance of several fruit. The tan fruit in the upper right portion of the rachis has been killed by the death of the rachis, not the infection. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/5bf1f3a6-5e94-428d-9bb6-5bad3e9ca5ab/pist+bot+4.jpg Blog - Managing botryosphaeria panicle and shoot blight of pistachio - Make it stand out Image 4: Late season secondary leaf infections of Botryosphaeria panicle and shoot blight. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/dffd32d3-f07c-4e0c-96b0-017ac5a96a63/pist+bot+5.png Blog - Managing botryosphaeria panicle and shoot blight of pistachio - Make it stand out Table 1: BUDMON and ONFIT guidelines. Time the summer applications following either a BUDMON or ONFIT test for late June/early July if one or two applications are needed. If your ONFIT test indicates two sprays are needed, repeat the second application two to three weeks later. https://www.sjvtandv.com/blog/groups-doing-mobile-irrigation-testing-tfnx8 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/early-walnut-training-considerations-based-on-nursery-product monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/cytospora-a-prune-growers-archnemesis monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/pulling-the-trigger-for-the-start-of-irrigation-in-the-spring-too-much-too-soon-for-walnuts monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/fa854322-4381-47db-9786-307491526e1c/Delay+irrigation+1.jpg Blog - Pulling the Trigger for the Start of Irrigation in the Spring: Too Much Too Soon for Walnuts? - Make it stand out Table 1. Irrigation start dates, seasonal irrigation applied (in inches and as the equivalent percent of irrigation requirement, calculated from ET minus in-season rainfall), and crop yield, for each of the irrigation treatments imposed in the first year of the study (2014). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/2d35b4b4-2fbf-4cb2-ab55-b7981dd57d89/Delay+irrigation+2.jpg Blog - Pulling the Trigger for the Start of Irrigation in the Spring: Too Much Too Soon for Walnuts? - Make it stand out Table 2. Average SWP measured in May and June 2014, when irrigation was being delayed in most of the treatments, and average SWP in October around harvest (October 17, 2014). Also shown are the baseline SWP values for the same time periods. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/7e8d2fca-cbcb-4948-bf42-679c8973dff7/Delay+irrigation+3.png Blog - Pulling the Trigger for the Start of Irrigation in the Spring: Too Much Too Soon for Walnuts? - Make it stand out Table 3. Average irrigation start date (and equivalent days after leafout), seasonal irrigation applied in inches (and equivalent percent of the seasonal irrigation requirement, as in Table 1), yield, percent edible yield, relative value, and crop relative value (and equivalent percent of the control treatment). Relative value is an index combining the two main economic drivers of walnut value (percent edible yield and kernel color), and crop relative value is Yield x Relative value. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/94a56ef4-7aa4-4968-b0f3-51d529b36dca/delay+irrigation+5.jpg Blog - Pulling the Trigger for the Start of Irrigation in the Spring: Too Much Too Soon for Walnuts? - Make it stand out Figure 1. An ailing tree at the Stanislaus site in 2018 showed signs of deterioration. Although the trunk was somewhat sunken at the soil line and necrosis was forming under the bark (center photo), samples were collected multiple times, but no Phytophthora spp. were isolated/found. This tree happened to be included in the delay irrigation treatment and during the passing of three years appears to be recovering, specifically showing greater shade under the tree canopy at midday since the beginning of the trial in 2018 (photos by K. Arnold). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/bbd16dec-9f32-4fdb-976e-aa109abfc5f0/delay+irrigation+6.png Blog - Pulling the Trigger for the Start of Irrigation in the Spring: Too Much Too Soon for Walnuts? - Make it stand out Figure 2. Summary of average orchard water requirement (ET-rain) and applied irrigation for all delayed irrigation tests to date (2014 – 2020). Daily CIMIS values for orchard water requirements were calculated beginning on April 1, based on current walnut crop coefficients, for each site and year, and averaged. Irrigation applied to all delayed treatments for each site and year were averaged for 10 day periods over the same seasons. https://www.sjvtandv.com/blog/nubbins-and-doubles-on-peaches-potential-causes monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/6a896eec-06bd-4a2e-8bb7-ee85cdb6b357/Nubbin+1.png Blog - Nubbins and Doubles on Peaches: Potential Causes - Make it stand out Photos of ‘Fairtime’ peach variety in June 2022 from an orchard in northern Merced County with nubbins and doubles present along with larger maturing fruit (original photo source Maxwell Norton). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/bdb08c66-d8d2-4e87-ad21-9d6a8be9bec5/Nubbin+2.png Blog - Nubbins and Doubles on Peaches: Potential Causes - Make it stand out Photos of ‘Fairtime’ peach variety in September 2015 (left, photo source Roger Duncan) and June 2022 (right, photo source Maxwell Norton) with nubbins present. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/96801028-41d2-4c3e-902d-e48bb46f854f/Nubbin+3.png Blog - Nubbins and Doubles on Peaches: Potential Causes - Make it stand out Photos of nubbins collected from ‘Fairtime’ peach variety in June 2022 (collected by Maxwell Norton). Photos include intact nubbins (top left), cut opened nubbins (bottom left), and closer photo of nubbins’ interior (right). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/d245bc0e-9700-4937-88c4-052b050abf95/Nubbin+4.png Blog - Nubbins and Doubles on Peaches: Potential Causes - Make it stand out Photos of double collected from ‘Ross’ peach variety in July 2022 (collected by Maxwell Norton). Photos include double looking at peduncle end intact (top left) and pulled apart (top right), double looking at suture intact (bottom left), and interior of one double with connection area and formed kernel (bottom right). Damage to kernel due to knife when cutting open fruit. https://www.sjvtandv.com/blog/things-to-consider-when-establishing-a-new-walnut-orchard monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/calculating-cost-of-a-lost-tree monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/new-orchard-advisor-for-merced-county-hired monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/fall-walnut-updates-1 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a0443a0c-c479-47bf-b26f-d38901d2517a/Walnut+update+1.jpg Blog - Fall Walnut Updates - Make it stand out Fig. 1. Freeze damage in a 9th leaf Solano orchard. Severity of symptoms is variable across and within orchard blocks (damage beneath the bark appears as brown discoloration). @Figure provided by Mohamed Nouri. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/caa1321d-c3bf-4d33-84f7-beaf41183ce4/Walnut+update+2.jpg Blog - Fall Walnut Updates - Make it stand out Fig. 2. Example of a set terminal bud. Photo provided by Janine Hasey. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/3bc94def-0c31-44e7-b0ae-f03b2acb4c10/Walnut+update+3.jpg Blog - Fall Walnut Updates - Make it stand out Fig. 3. Brown Apical Necrosis is shown on the left, not to be confused with Walnut Blight, shown on the right, and caused by the bacterial pathogen, Xan- thomonas arboricola pv. juglandis. Internal tissues in nuts with BAN at this stage do not show any decay and/or black discoloration as do nuts with walnut blight. Figure provided by Themis Michailides. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/99da16ab-ff53-4351-8852-e9cdb72b506e/Walnut+update+4.jpg Blog - Fall Walnut Updates - Make it stand out Fig. 4. Moldy, off-color nuts which lead to economic loss due to down- grading. Figure provided by Themis Michailides. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/e9b881bd-139d-4ce2-a5f1-c0ddc5316cd8/Walnut+update+5+.png Blog - Fall Walnut Updates Fig. 5. Symptoms in walnut trees associated with Botryosphaeria and Phomopsis fungi; (D, shows the growth of the fungi within the pith beyond the margin of the canker -dead tissues). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/ba3c7916-e233-45c4-8750-90152254e372/Walnut+update+6.jpg Blog - Fall Walnut Updates - Make it stand out Fig. 6. Symptoms in walnut trees associated with abiotic problems that may include shade/ low sunlight or freeze https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/2637cfa6-f366-4ad3-9ba3-a012d05a453d/Walnut+update+7.jpg Blog - Fall Walnut Updates - Make it stand out Fig. 7. High aerial dissemination of Phomopsis spores when grinding of infected branches that are placed between tree rows in a mature walnut orchard. https://www.sjvtandv.com/blog/can-alternative-rootstocks-overcome-replant-disease-in-unfumigated-second-generation-orchards monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/ce285968-e337-46c0-8b62-a7b1dc562a90/Fumigation+chart.png Blog - Can Alternative Rootstocks Overcome Replant Disease in Unfumigated, Second Generation Orchards? - Make it stand out *2019 yield was substantially impacted by bacterial blast in all rootstocks. Bacterial blast is caused by invasion of buds or flowers by Pseudomonas syringae bacteria following sub-freezing temperatures and then warm rain. Rootstock does not generally affect bacterial blast severity. https://www.sjvtandv.com/blog/should-you-use-ethephon-in-a-lean-price-year monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/insecticide-options-for-navel-orangeworm-ipm-in-almondsa-recent-trial-summary monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/c6e87afc-7133-4661-84b2-8f9c81b2a705/NOW+insecticide+1.jpeg Blog - Insecticide Options for Navel Orangeworm IPM in Almonds—A Recent Trial Summary - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/b5b124ac-8982-4f07-a935-5fe3e687dadd/NOW+insecticide+2.png Blog - Insecticide Options for Navel Orangeworm IPM in Almonds—A Recent Trial Summary - Make it stand out Note: Venerate was used only in 2020; BT NOW and SpearLep+Leprotec were used only in 2021. * IRAC (Insecticide Resistance Action Committee) assigns different numbers for insecticide active ingredients with varying modes of action (MoA). In general, avoiding the repeated spray of the insecticide(s) from the same IRAC group help to reduce the risk of insecticide resistance. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/eba352ed-ef73-4192-86d3-e3c72fa9b797/NOW+insecticide+3.png Blog - Insecticide Options for Navel Orangeworm IPM in Almonds—A Recent Trial Summary - Make it stand out Figure 1. Effect of insecticides on NOW infestation, 2020: Treatments with a common letter had a similar NOW % nut infestation and were not significantly different based on the Tukey HSD (5% level of significance). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/83de27e5-ef63-4624-8e96-6352f1f822c4/NOW+insecticide+4.png Blog - Insecticide Options for Navel Orangeworm IPM in Almonds—A Recent Trial Summary - Make it stand out Figure 2. Effect of insecticides on NOW infestation, 2021: Treatments with a com- mon letter had a similar NOW % nut infestation and were not significantly different based on the Tukey HSD (5% level of significance). https://www.sjvtandv.com/blog/estimating-n-contributions-from-compost monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/removal-of-infested-branches-helps-to-minimize-flatheaded-borer-damage-in-walnuts monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/56ec518c-4056-47c5-97e4-f46bdf6805f4/Pacific+flatheaded+borer+1.png Blog - Removal of Infested Branches Helps to Minimize Flatheaded Borer Damage in Walnuts - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/27d6d7bf-800f-45f9-b038-77edffa33e95/Pacific+flatheaded+borer+2.png Blog - Removal of Infested Branches Helps to Minimize Flatheaded Borer Damage in Walnuts - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/6d910f0b-bc58-46d2-b172-925d50d07832/Pacific+flatheaded+borer+3.png Blog - Removal of Infested Branches Helps to Minimize Flatheaded Borer Damage in Walnuts - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/8e332612-cb8c-4ef1-9b58-93b3956b9503/Pacific+flatheaded+borer+4.png Blog - Removal of Infested Branches Helps to Minimize Flatheaded Borer Damage in Walnuts - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/6cadfb72-4e67-4921-a489-95e249f3907a/Pacific+flatheaded+borer+5.png Blog - Removal of Infested Branches Helps to Minimize Flatheaded Borer Damage in Walnuts - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1241ee1d-e2e8-4eef-a824-7d23aae9abb1/Pacific+flatheaded+borer+6.png Blog - Removal of Infested Branches Helps to Minimize Flatheaded Borer Damage in Walnuts - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/madera-county-almond-day-presentations monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/sac-valley-orchards-post monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/regional-testing-of-almond-varieties-ongoing-yield-results-through-2020 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a079853d-8013-4851-bd56-6cc99e67ab4d/RAVT+1.png Blog - Regional Testing of Almond Varieties Ongoing - yield results through 2020 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/irrigating-with-a-limited-water-supply monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/evaluation-of-soil-salinity-plant-tissue-and-water-reports monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/sac-valley-orchards-post-1 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/virtual-walnut-day-videos-are-now-online monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/pistachio-day-presentations monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/8c2b4d60-8994-4527-bfdf-15b1b0d6b679/Walnut+scale+1.png Blog - Walnut Scale: an insidious pest of walnut in California - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/d13a2274-e167-4e2a-8854-09e797b1e297/Walnut+scale+2.png.jpg Blog - Walnut Scale: an insidious pest of walnut in California - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/492fdcc0-f9e6-43f9-b772-2b6a58c0cc0e/Walnut+scale+3.png Blog - Walnut Scale: an insidious pest of walnut in California - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/cc267405-c77f-49df-8598-1fbc5a16391a/walnut+scale+4.png Blog - Walnut Scale: an insidious pest of walnut in California - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/olive-oil-irrigation-field-day monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/b1524b4f-7ddb-4800-99f8-11d275d7574b/Olive+oil+field+day.jpg Blog - Olive Oil Irrigation Field Day - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/uc-nitrogen-management-course-is-open-for-enrollment-again-phnbc-wn7nn monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/potential-for-mechanically-pruning-deciduous-fruit-crops monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/madera-county-regional-almond-variety-trial-field-day monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/walnut-blight-management-for-2022 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/uccecdfa-cover-crop-survey monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1b9aaa51-22bf-4506-b873-b0338925f3e3/UCCE__CDFA_Cover_Cropping_Grower_Survey.jpg Blog - UCCE/CDFA cover crop survey - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/statewide-pistachio-day-recordings-now-available monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/irrigating-young-potted-trees monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/fresno-el-peco-soil-reclassification-project-madera-county monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/2b9da2b0-cf2f-4028-bf48-8d474f97244d/Fresno_ElPeco_mapunit_MaderaCounty_8by11+UC.jpg Blog - Fresno El Peco Soil Reclassification Project Madera County - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/pistachio-growth-model-website monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/winter-chilling-of-pistachio-consequences-of-low-chill-and-implementation-of-online-chill-calculators monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/a484cfb0-53ba-4151-b1d0-2282da58b230/Pistachio+chill+1.png Blog - Winter Chilling of Pistachio: Consequences of Low Chill and Implementation of Online Chill Calculators - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/26d902c3-8063-4f99-a322-ab31b5e5e5a8/pistachio+chill+2.png Blog - Winter Chilling of Pistachio: Consequences of Low Chill and Implementation of Online Chill Calculators - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/898229e0-d530-4c3f-8c39-31cc2cf1cc1c/Pistachio+chill+3.png Blog - Winter Chilling of Pistachio: Consequences of Low Chill and Implementation of Online Chill Calculators - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/using-a-pressure-chamber-is-worthwhile monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/upcoming-madera-county-educational-meetings monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/phosphorus-your-orchard-probably-doesnt-need-it monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1582054999398-XQ528G204RW479ABEAD6/Picture1.png Blog - Phosphorus: Does your orchard need it? Photo of P deficient walnuts. Photographer is likely Serr. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1582054959676-CPX1YOPL2UJ8U9M78TFA/Picture2.png Blog - Phosphorus: Does your orchard need it? Senescing leaves on P deficient nectarine trees. Photographer not recorded; copyright belongs to the University of California Division of Agriculture and Natural Resources. https://www.sjvtandv.com/blog/february-2022-almond-orchard-tasks monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/5f7c2ffb-335e-435b-80ea-913a7b700523/Feb+tasks+5.jpg Blog - February 2022 Almond Orchard Tasks - Make it stand out Brown rot in almonds https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/27be9ecc-7b49-4c97-9925-22cfc737c655/Feb+tasks+3.jpg Blog - February 2022 Almond Orchard Tasks - Make it stand out Shot hole on almond leaves https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/6cbe19c0-7e92-40bb-9b1b-66b654aee497/Feb+tasks+4.jpg Blog - February 2022 Almond Orchard Tasks - Make it stand out Shot hole on almond fruit https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/e12411f5-7d5a-4e09-9db5-c376bb000e06/Feb+tasks+1.JPG Blog - February 2022 Almond Orchard Tasks - Make it stand out Scab on almond fruit https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/9cdf83f2-476d-4a59-85c4-9cb508ce57f0/Feb+tasks+2.JPG Blog - February 2022 Almond Orchard Tasks - Make it stand out Scab on almond leaves https://www.sjvtandv.com/blog/weed-control-considerations-for-2022 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/268781a2-ad0c-4860-a73a-914b5bf7c057/weed+1.png Blog - Weed control considerations for 2022 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/d870d6aa-641b-4c14-985a-f5a60ddf2dee/weed+2.png Blog - Weed control considerations for 2022 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/cc68896a-e89e-4f67-b058-5500e8581b77/weed+3.png Blog - Weed control considerations for 2022 Roundup PM, 3 pints an acre 43 days after application https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/f6a5402c-be15-49cc-8351-d8b03879387d/weed+4.png Blog - Weed control considerations for 2022 Embed Extra, 3 pints an acre 43 days after application https://www.sjvtandv.com/blog/sign-up-for-statewide-pistachio-day-2022 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/other-resources-how-to-videos-on-youtube monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/gills-mealybug monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/f1490f6e-7cc5-4946-a9da-624b4b66d642/Gills+1.jpg Blog - Gills Mealybug - Make it stand out Figure 1: Gills mealybug adults feeding on a pistachio rachis. Photographer: David Haviland. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/7a35fc6d-ed1f-483a-ab21-097f3693003b/Gills+2.png Blog - Gills Mealybug - Make it stand out Top: Gill’s mealybug. Bottom, Grape mealybug. Photographer: David Haviland. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/c5e0c36b-d925-4d05-94cd-027d8a1d28ad/Gills+3.jpg Blog - Gills Mealybug - Make it stand out Figure 3: Gill’s mealybug adults with first instar nymphs (crawlers). Photographer: David Haviland. https://www.sjvtandv.com/blog/ucanr-drought-seminar-series monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/grower-request-pistachio-yield-prediction monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/postharvest-potassium-nutrition-prune-focus monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/uc-nitrogen-management-course-is-open-for-enrollment-again-phnbc monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/zyw19fh51cl75u0b9urw0wud0i5qbp monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1633459989084-V84KX9G2ETI4YTHRR41C/Branch+peel+1.jpg Blog - Field Note: Possible Cause of Mid-Canopy Wood Peeling in Almond - Make it stand out Photos of third-leaf ‘Nonpareil’ almond tree branches with peeling wood at beginning of September. Gloved hand behind branch for scale. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1633460089923-NG1W1L4EFZAALKPWKH3I/branch+peel+2.jpg Blog - Field Note: Possible Cause of Mid-Canopy Wood Peeling in Almond - Make it stand out Photo of third-leaf ‘Nonpareil’ almond being harvest at the end of August using poles and tarps. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1633460272714-OZZQN5E41RWVO18GCIIK/Branch+peel+3.jpg Blog - Field Note: Possible Cause of Mid-Canopy Wood Peeling in Almond - Make it stand out Photo of third-leaf ‘Nonpareil’ almond with red line denoting approximate height seen for wood peeling and location of ties (left) and wood peeling on the outer canopy with orange tie on inner canopy (right). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1633532834626-72LTA3FWBQFX6CKHJ2R7/Poling_GIF_V2_20_MB.gif Blog - Field Note: Possible Cause of Mid-Canopy Wood Peeling in Almond - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/california-walnuts-sustained-freeze-injury-in-fall-2020 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1632759930967-0KT4B0KT7YT77PODAOO4/Walnut+freeze+1.jpg Blog - California Walnuts Sustained Freeze Injury in Fall 2020 - Make it stand out Fig. 1. Minimum air temperatures data (°F) collected from the CIMIS station located in Manteca CA, for the Nov., Dec. of 2018 – Nov., Dec., Jan. and Feb. of 2019 and 2020 – and Jan., Feb., of 2021. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1632760010142-MBJL6E5OLFVT74ZU27IT/Walnut+freeze+2.jpg Blog - California Walnuts Sustained Freeze Injury in Fall 2020 - Make it stand out Fig. 2. Precipitation data (in) collected from the CIMIS station located in Manteca CA, for the Nov., Dec. of 2018 – Nov., Dec., Jan. and Feb. of 2019 and 2020 – and Jan., Feb., of 2021. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1632760079766-TJELD9Z177BIDFPEAN4B/Walnut+freeze+3.jpg Blog - California Walnuts Sustained Freeze Injury in Fall 2020 - Make it stand out Fig. 3. Freeze damage in young walnut trees produces bark discoloration in the wood. Affected branches or trees dehydrate mainly from the top and show tip dieback. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1632760201663-J0HPKI0FCZ7NQRSS4NJP/Walnut+freeze+4.png Blog - California Walnuts Sustained Freeze Injury in Fall 2020 - Make it stand out Fig. 4. Freeze damaged in, A. 9th leaf Solano and B. 9th leaf Chandler https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1632760314849-0NJCRPU9F0MK33MAGL1I/walnut+freeze+5.png Blog - California Walnuts Sustained Freeze Injury in Fall 2020 - Make it stand out Fig. 5. Freeze damaged in 9th leaf Solano. Severity of symptoms is variable across and within orchard blocks (damage beneath the bark appears as brown discoloration). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1632760383492-GW0RCVQIUUUQN8T9Z5OY/Walnut+freeze+6.jpg Blog - California Walnuts Sustained Freeze Injury in Fall 2020 - Make it stand out Fig. 6. Freeze damaged in 2nd leaf Chandler, A. pruned below the damaged tissue on April 30, 2020. B. Picture taken on July 30, 2020 showing tree recovery. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1632760473847-XYCP6IU0VVQ1UAUK2LIV/Walnut+freeze+7.png Blog - California Walnuts Sustained Freeze Injury in Fall 2020 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1632760528184-0HCGL605P89RGABW4GBQ/walnut+freeze+8.png Blog - California Walnuts Sustained Freeze Injury in Fall 2020 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1632761362950-8R405T6HRMZZPP0S0ZAA/Walnut+freeze+9.png Blog - California Walnuts Sustained Freeze Injury in Fall 2020 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1632761445130-Y6PNIX0E9ASCW9NIZC9W/Walnut+freeze+10.png Blog - California Walnuts Sustained Freeze Injury in Fall 2020 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1632761499933-T4FK5KKS6VLZO9BZY0ST/Walnut+freeze+11.png Blog - California Walnuts Sustained Freeze Injury in Fall 2020 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sjvtandv.com/blog/postharvest-nutrition-of-nut-crops monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1628109298163-G04D5GT5I6YKR3OE430J/Postharvest+nut+nutrition.png Blog - Postharvest Nutrition of Nut Crops - Make it stand out Table 1: movement of potassium after surface application or fertigation. Adapted from: Uriu, K., R.M. Carlson, D.W. Henderson, H. Schulbach, and T.M. Aldrich. 1980. Potassium fertilization of prune trees under drip irrigation. J. Amer. Soc. Hort. Sci. 105:508–510. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1628109377870-SU5Z28GME1JPTUCTJBKR/K+requirements.png Blog - Postharvest Nutrition of Nut Crops - Make it stand out Table 2: Potassium requirement for bearing nut trees in California 1Walnut hulls contain a considerable amount of potassium; if hulls are not returned to the orchard, 40-50 lbs of K2O will be needed to replace the exported potassium https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1628109486098-W1Q4FZLCFSU27JR7CTPX/Leaf+critical+K+values.png Blog - Postharvest Nutrition of Nut Crops - Make it stand out Table 3: Sufficiency standards for the major nut crops in California *pistachio responses to boron are not fully understood; in Kerman trees, leaf toxicity symptoms were reduced as salinity increased, despite leaf boron concentrations being similar. Additionally, leaves with high boron concentrations will exhibit marginal necrosis but will not fall off the tree. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1628109578150-JIG0EKQZNCMQKOSD2UIQ/critical+zn+values.png Blog - Postharvest Nutrition of Nut Crops - Make it stand out Table 4: Leaf critical values for zinc in the major nut crops grown in California. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1628109644942-G5YCLDIUZDWVTWVKTGLJ/walnut+N+accumulation.png Blog - Postharvest Nutrition of Nut Crops - Make it stand out Figure 1: Nitrogen accumulation in walnuts. Courtesy of Katherine Jarvis-Shean. https://www.sjvtandv.com/blog/late-season-prune-irrigation monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/pistachio-nitrogen-nutrition-what-do-we-know-and-how-do-we-manage monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1629158881953-4SPZNMT4YIZ3SYFJ1GU2/Pistachio+N+1.png Blog - Pistachio Nitrogen Nutrition: What do we know and how do we manage? - Make it stand out Figure 1. The nitrogen cycle: a balancing act with the goal of applying adequate N to supply tree demand for growth and fruit production, and to avoid nitrogen losses to the environment. Adapted from: ABC N-BMP 2020 guidance. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1629159001127-57WYW3XTI40HD15AU453/Pistachio+N+2.png Blog - Pistachio Nitrogen Nutrition: What do we know and how do we manage? - Make it stand out Figure 2. Nitrogen in pistachio trees during 'on' and 'off' years. Before leaf-out, little N was taken up and the trees relied on N remobilized from perennial tissue. In 'on' years, approximately 30% of N was taken up during spring flush (mid-March to late May) and 70% during nut fill. N uptake was negligible between harvest and leaf senescence. In 'off' years, the proportion of N taken up during spring flush was slightly higher. Source: California Crop Fertilization Guidelines: N Pistachio (cdfa.ca.gov). **Note that the nitrogen (N) amount shown on Y axis is for entire orchard N content, not N recommended rate per acre. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1629159124537-DV24508KQNIQF8A6HELH/Pistachio+N+3.png Blog - Pistachio Nitrogen Nutrition: What do we know and how do we manage? - Make it stand out Table 1. Nitrogen application timing. *Post-harvest application should only occur if trees are healthy and N application was too low. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1629161021637-3PCNX4HL954HNPWRYZI9/Pistachio+N+4.png Blog - Pistachio Nitrogen Nutrition: What do we know and how do we manage? - Make it stand out Table 2.Nitrogen Concentrations in Summer Leaf Samples. Critical Values (CV) are minimum concentrations for adequate tree growth and yield. Suggested Range also refers to the concentration for optimal growth. **Growth and yield is not improved with July tissue levels above 2.5 percent. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1629161207555-ZBLQTZOA9PUKABPEDW3D/Pistachio+N+5.png Blog - Pistachio Nitrogen Nutrition: What do we know and how do we manage? - Make it stand out Figure 3. Following the sampling protocol guidelines is important to get around the challenges of leaf sampling canopy variability (A). Each sampled tree must be at least 25-30 yards apart (B) and only sub-terminal leaves from non-fruiting branches should be collected (C). https://www.sjvtandv.com/blog/preparing-your-walnut-orchard-for-frost-or-fire-damage monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/do-you-have-a-walnut-orchard-that-has-suffered-from-freeze-damage monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/consider-alternative-rootstocks-for-a-more-profitable-almond-orchard monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1628108024055-F5CUGVXPMT128JM68RST/Rootstock+table.png Blog - Consider Alternative Rootstocks for a More Profitable Almond Orchard - Make it stand out *Yield and leaf levels followed by the same letter are not statistically different with at least 95% confidence. Relative rootstock performance is highly dependent on soil and growing conditions and numbers shown here may be most relevant to orchards in heavy soil with high chloride. Chloride levels above 0.30% are considered excessive. Sodium levels above 0.25% are considered excessive. https://www.sjvtandv.com/blog/new-fruit-pest-alert-black-fig-fly monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1630337281389-0A16B4SEVL6RZDZIVT5C/BFF+1.png Blog - New Pest Alert: Black Fig Fly Figure 1. BFF female depositing eggs into the fig ostiole. Photo: H. Wilson your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1630337444450-WJ2YVX0WZJPSN5GLWTJX/BFF+2.jpg Blog - New Pest Alert: Black Fig Fly Figure 2. Internal damage to the fig from larval feeding. Photos: H. Wilson https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1630337472045-BUYV3UXFR5A263SIUWG2/BFF+3.jpg Blog - New Pest Alert: Black Fig Fly Figure 3. Exit hole from larva burrowing out of the fruit. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1630337506236-IOUWKTTLD17RD5U21CPD/BFF+4.jpg Blog - New Pest Alert: Black Fig Fly - Make it stand out Figure 4. BFF pupa found inside of a fig. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1630337693815-C7KNI40YO2JIL1964JVM/BFF+5.jpg Blog - New Pest Alert: Black Fig Fly Figure 5. McPhail-type trap. Photo: UC IPM https://www.sjvtandv.com/blog/the-many-possible-causes-of-gummy-nuts monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/investigating-the-cause-of-leaf-blotch-and-fruit-spot-of-apple-in-san-joaquin-county-california monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1627937521769-GEUO6U7OR5MW2D9J28NF/Apple+1.jpg Blog - Investigating the Cause of leaf blotch and fruit spot of apple in San Joaquin County California - Make it stand out Fig. 1. Alternaria leaf infections of cv. Pink Lady apples https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1627937632972-MCZR4A2UJV4V2GKZT7PM/Apple+2.jpg Blog - Investigating the Cause of leaf blotch and fruit spot of apple in San Joaquin County California - Make it stand out Fig. 2. Alternaria leaf blotch symptoms of cv. Pink Lady apples https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1627937714007-PXAYM4IO67GF6JX3RTZA/Apple+3.jpg Blog - Investigating the Cause of leaf blotch and fruit spot of apple in San Joaquin County California - Make it stand out Fig. 3. Alternaria fruit spot symptoms on the surface of fruit of cv. Pink Lady https://www.sjvtandv.com/blog/updates-on-botryosphaeria-phomopsis-diseases-of-walnut-in-san-joaquin-county-california monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1627937200874-8T6MXNEK5HC73T73GP73/Bot+update+1.jpg Blog - Updates on Botryosphaeria-Phomopsis diseases of walnut in San Joaquin County, California - Make it stand out Fig. 1. Symptoms in walnut trees associated with Botryosphaeria and Phomopsis fungi; (D, shows the growth of the fungi within the pith beyond the margin of the canker - dead tissues). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1627937294896-M8VIN0879XP5JL0S71B9/bot+update+2.jpg Blog - Updates on Botryosphaeria-Phomopsis diseases of walnut in San Joaquin County, California - Make it stand out Fig. 2. Symptoms in walnut trees associated with abiotic problems that may include: shade/low sunlight or freeze https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1627937356192-FC1DVOEBFU7TTXROSADG/Bot+update+3.jpg Blog - Updates on Botryosphaeria-Phomopsis diseases of walnut in San Joaquin County, California - Make it stand out Fig. 3. High aerial dissemination of Phomopsis spores when grinding of infected branches that are placed between tree rows in a mature walnut orchard. https://www.sjvtandv.com/blog/guide-to-cover-cropping-in-almonds monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/seeking-volunteers-for-uc-merced-biochar-study monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/new-pest-of-fig monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1626706302274-PDNPWZUL0CTVYOGV5B37/Black+Fig+Fly+damage.jpg Blog - New pest of fig - Make it stand out Damage from the black fig fly https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1626706336730-SS6PYA398JGENYQHQVBB/Black+Fig+Fly.jpg Blog - New pest of fig - Make it stand out Black fig fly life stages https://www.sjvtandv.com/blog/regulated-deficit-irrigation-in-almonds-to-manage-hull-rot monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568934740641-RZ2452O33LD1QD3WTD3F/1.jpg Blog - Regulated Deficit Irrigation in Almonds to Manage Hull Rot Image 1: Photo by Phoebe Gordon. Almond shoot strike on a tree severely affected by hull rot. Note the shriveled leaves on the branch, and the carpet of dead leaves on the orchard floor. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568934780753-BJ6EHFBQMBPQNUFMQTRM/2.jpg Blog - Regulated Deficit Irrigation in Almonds to Manage Hull Rot Image 2: Photo by Phoebe Gordon. Almond hull with Rhizopus hull rot (right). https://www.sjvtandv.com/blog/wssa-herbicide-mode-of-action-update monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/volunteers-needed-for-research-study-on-glyphosate-and-herbicide-selection monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/understanding-sudden-vine-collapse-in-california monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1620423905563-0JXGLV7WAUM3QLN9LJ1M/Sudden+vine+collapse+fig+1.jpg Blog - Understanding Sudden Vine Collapse in California FIGURE 1 A typical mystery (sudden) vine collapse site – in the collapsing “patch” are empty spaces where dead vines were removed, dead vines, recently collapsed vines, collapsing vines and healthy vines. (Picture credit Stephanie Bolton, 2018). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1620424034505-AL0Y379V64KKH1BJE6M1/Sudden+vine+collapse+fig+2.jpg Blog - Understanding Sudden Vine Collapse in California FIGURE 2 Different stages of Sudden Vine Collapse that were used as a sampling strategy for the study. A) healthy looking appearance, B) stunted shoots, C) declining and D) advanced decline (Picture credit Eskalen Lab, 2019) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1622831276257-BL2BFMEI1VNW722ENWFA/Vine+collapse+fig+3.png Blog - Understanding Sudden Vine Collapse in California - Make it stand out Figure 3: Dead arm and internal symptoms caused by the different fungal pathogens of grapevine trunk diseases. (Picture credit Eskalen Lab, 2019) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1622831476792-87TDULPKVHWBN3X8OJO9/Vine+collapse+fig+4.png Blog - Understanding Sudden Vine Collapse in California - Make it stand out Fig 4. Visual symptoms of viruses on entire vine (top left) and leaves and mealybug on a vine trunk. (Picture credit AlRwahnih Lab, 2019) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1622831551601-PQAS6P4FD0CZ79FM8F5T/collapse+table.png Blog - Understanding Sudden Vine Collapse in California - Make it stand out 1 Ranking on a scale of 1-5. 1: Healthy looking 2: Beginning Decline 3: Declining 4: Advanced Decline 5: Dead 2 Result based on approximation of starch presence. -: 0-10% +: 11-20% ++: 21-40% +++ https://www.sjvtandv.com/blog/manejo-de-las-chicharritas-saltahojas-de-la-vid monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/large-and-small-bug-control-in-pistachio monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1621623107088-JJQJDCXOPTT8NB0HYQH0/Green+stink+bug.JPG Blog - Large and Small Bug Control in Pistachio - Make it stand out Image 1: Large stink bug populations can lead to significant feeding damage on nut crops, such as these green stink bugs (Chinavia hilaris) on almonds. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1621623219484-BWRFMSZ6GJV2OCOCNKTB/Phytocoris.jpg Blog - Large and Small Bug Control in Pistachio Image 2: Phytocoris. This small plant bug will feed on fruit, as well as soft scales, stink bug eggs, and NOW eggs. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1621623471182-GDX1OSI4GSWF3CZI8BVE/bug+damage+pistachios.jpg Blog - Large and Small Bug Control in Pistachio Image 3: Early season bug damage in pistachios. Notice the blackened, shriveled nuts. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1621623544627-LAC9WK451L5MQOPDXANR/L+zonatus.jpg Blog - Large and Small Bug Control in Pistachio - Make it stand out Image 4: Leaffooted plant bug, specifically Leptoglossus zonatus. Note the wide, leaf-like structures on the hind legs. Photo: Kent Daane https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1621623664212-AW6MT60CIKT3GYIONTAO/stink+bugs.jpg Blog - Large and Small Bug Control in Pistachio https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1621623653497-ODLEHYOI8BACBO2EUNJH/rough+stink+bug.jpg Blog - Large and Small Bug Control in Pistachio https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1621623794926-2I4QMY7B9J3W07ZIF7AM/stigmatomycosis.jpg Blog - Large and Small Bug Control in Pistachio Image 6: stigmatomycosis in pistachios, due to large bug feeding. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1621624005291-4B6EM7GINJXEXZ9A6Y6Z/LFB+eggs.jpg Blog - Large and Small Bug Control in Pistachio https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1621624015283-4Q6NZYKTRYAM5DQNZZEV/stink+bug+eggs.jpg Blog - Large and Small Bug Control in Pistachio https://www.sjvtandv.com/blog/pistachio-short-course-videos monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/zinc-fertilization-in-california-orchard-crops monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1617738895161-DV0ELWHWUJZN82L0XDVI/Zinc+1.png Blog - Zinc Fertilization in California Orchard Crops Figure 1: Zinc deficient walnut (top left, source K. Uriu), zinc deficient almond (top right, source W. Asai), zinc deficient pistachio (bottom, source: B. Beede) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1617739030694-5EHJPGDHKFO9XSUPT82X/Pecan+Zinc+Deficiency+4+R.+Heerema.jpeg Blog - Zinc Fertilization in California Orchard Crops Figure 2: Zinc deficient pecan (source: R. Heerema) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1617739218167-5TBTYGCPNU0OAK0USHFM/Zinc+table+1.png Blog - Zinc Fertilization in California Orchard Crops Table 1: Leaf critical values for some major orchard crops grown in the Central Valley https://www.sjvtandv.com/blog/a-six-year-evaluation-of-the-cumulative-impacts-of-glyphosate-impacts-on-orchard-crops monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/2021-pistachio-irrigation-mitigation-strategies-for-drought monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1621887865097-QLB7ISBNAV10B1NBVRHH/Irrigation+figure+1.jpg Blog - 2021 Pistachio Irrigation: Mitigation Strategies for Drought - Make it stand out Figure 1. Relationship between different levels of soil moisture availability and plant water stress. Water budgeting techniques aim to maintain soil moisture in the desired range between field capacity and ~50% total soil available water. Severe drought limitations may require moisture just above the threshold of management allowable depletion. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1621887934283-76RH8GAVCUA5LNEHV0IH/Irrigation+figure+2.jpg Blog - 2021 Pistachio Irrigation: Mitigation Strategies for Drought - Make it stand out Table 1. Average available water-holding capacity (Wa) for various soil textures. Adopted from the UC ANR Drought tips “Field Irrigation water management in a nutshell” https://anrcatalog.ucanr.edu/pdf/8571.pdf https://www.sjvtandv.com/blog/sac-valley-orchard-source-post monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/share-your-perspective-solar-on-california-working-lands monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/cling-peach-day-recordings-are-now-available monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/developing-a-nitrogen-fertilizer-plan-for-olive-orchards monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1617293436245-O8EI5KCTLR8ZC5QJN34U/olive+N+fig+1.png Blog - Developing a nitrogen fertilizer plan for olive orchards https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1617293474957-Z96TGMSJEN8FGQJLHL4T/olive+n+fig+2.png Blog - Developing a nitrogen fertilizer plan for olive orchards https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1617293516686-3WKHE0DAZXJ4MRX0VB5R/olive+n+table+1.png Blog - Developing a nitrogen fertilizer plan for olive orchards https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1617293580047-CF0OV86CEU7ZE6ETOG7G/olive+n+fig+3.png Blog - Developing a nitrogen fertilizer plan for olive orchards https://www.sjvtandv.com/blog/north-san-joaquin-almond-day-videos-are-now-online monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/why-the-ucbi-pistachio-rootstock-is-salinity-tolerant monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1616075396688-11FNPJYOW8YHD70VGM98/salinity+Picture1.png Blog - Why the UCBI Pistachio Rootstock is Salinity Tolerant Figure 1. As soil ECe rises the UCBI rootstock, (blue bar), clearly takes up less Na+ than the Atlantica rootstock (green bar) or Integerrima (brown bar) and transports a far smaller proportion to the scion leaves than the other two rootstocks. This suggests exclusion at the root level and a sequestering mechanism within the rootstock. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1616075587074-I64EL7IKC5G9OEZQTBLZ/salinity+Picture2.png Blog - Why the UCBI Pistachio Rootstock is Salinity Tolerant Figure 2. As soil ECe rises the UCBI rootstock, (blue bar), clearly takes up less Cl- than the Atlantica rootstock (green bar) or Integerrima (brown bar). As with Na+, this pattern again suggests exclusion of Cl- at the root level and a sequestering mechanism within the rootstock. https://www.sjvtandv.com/blog/uc-nitrogen-management-course-is-open-for-enrollment-again monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/whole-orchard-recycling-factsheet-available monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/thinning-prunes-is-critical-in-a-year-with-warm-bloom-temperatures monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/resurgence-of-perennial-phytophthora-canker-disease-of-almonds monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614211393741-2QHSGBA6TP15199CTRTD/phytopthora+fig+1.png Blog - Resurgence of Perennial Phytophthora Canker Disease of Almonds Figure 1. Declining almond tree infected with aerial Phytophthora across the main scaffolds and trunk with yellow to amber gumballs. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614211636012-DVKLXNCB294C03BU2YI3/phytopthora+fig+2.png Blog - Resurgence of Perennial Phytophthora Canker Disease of Almonds Figure 2. Infected 2-year almond tree with root and crown rot. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614211839351-SDSUPMZCN3X2Y7RMXB23/phytopthora+fig+3.png Blog - Resurgence of Perennial Phytophthora Canker Disease of Almonds Figure 3. Pocket formation with debris, leaf, and rain collected at the crotch area of an almond tree. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614212028133-PSXFTH6KV61C9E3B23R6/phytopthora+fig+4.png Blog - Resurgence of Perennial Phytophthora Canker Disease of Almonds Figure 4. Dr. Greg Browne inspecting a symptomatic almond tree with gumming (Left). Removing the bark on affected trees will show the development of a perennial canker. The arrow points to the edge of the canker (Right). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614212044925-N80C28NHT2CB4S0J0C3X/phytopthora+fig+5.png Blog - Resurgence of Perennial Phytophthora Canker Disease of Almonds Figure 5. Declining almond tree showing symptoms of foamy canker and aerial Phytophthora disease. https://www.sjvtandv.com/blog/what-new-research-into-carbohydrates-is-teaching-us-about-california-orchards monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/effect-of-smoke-on-grape-production-in-the-san-joaquin-valley monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613008710710-NXSQ2WL1PFITFZIM5MB7/Smoke+image+1.png Blog - Effect of Smoke on Grape Production in the San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613008771684-3XO2PPBOB8H58SJ0TO9J/smoke+figure+1.png Blog - Effect of Smoke on Grape Production in the San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613008832957-962LZ2JH9XNRXS8XCXPZ/smoke+figure+2.png Blog - Effect of Smoke on Grape Production in the San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613009200002-E9U69KOYEULVIDZG2SVU/smoke+image+2.jpg Blog - Effect of Smoke on Grape Production in the San Joaquin Valley Image 2. Viticulture interns of UCCE Fresno were measuring leaf gas exchange during the recent smoke events in Fresno. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613009229035-LJQ7TG7HQ19JOQE7LJU0/Smoke+figure+3.png Blog - Effect of Smoke on Grape Production in the San Joaquin Valley https://www.sjvtandv.com/blog/statewide-walnut-day-videos-are-now-online monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/updated-pistachio-cost-study-now-available monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/pruning-and-trunk-diseases monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613009624569-5MKS7ZB6HO37AKDFYT0M/pruning+figure+1.png Blog - Pruning and Trunk Diseases https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613009788637-PON6NFUG6YCQTRVK3EC3/Pruning+image+1.png Blog - Pruning and Trunk Diseases Image 1. Pruning damage on mechanical pruned vineyard. Red circles show the expected pruning lesion size if manual pruning was used. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613009902843-05SJ8884I70OAW0Y28G0/pruning+wound+protection.png Blog - Pruning and Trunk Diseases https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613010027221-SFWHHOTXA2OILF92YP22/pruning+figure+2.png Blog - Pruning and Trunk Diseases https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613066941977-P0FGRJ65YHOO5VZ0TFVW/Pruning+image+3.png Blog - Pruning and Trunk Diseases Figure 3. J root planting. A. Correct, straight root distribution; B. J root at planting; C. Cracking points at J rooted plants bend points (red arrows). https://www.sjvtandv.com/blog/groundwater-short-course-starts-may-6 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/bloom-weather-influences-fruit-set-in-prunes-k3g6c monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/spring-in-california-walnuts-budbreak-bloom-and-pollination-events-that-start-the-season monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614209866277-8CZGQBVDTWQSBLVW7837/Walnut+bloom+fig+1.png Blog - Spring in California walnuts: budbreak, bloom, and pollination events that start the season https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614210225917-EBRHOZTAO7XUUIVKX40K/walnut+bloom+fig+2.png Blog - Spring in California walnuts: budbreak, bloom, and pollination events that start the season https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614210441584-8QVUL2W9KMHRTJI9RV7F/walnut+bloom+table+1.png Blog - Spring in California walnuts: budbreak, bloom, and pollination events that start the season https://www.sjvtandv.com/blog/verticillium-wilt-vs-freeze-damage-of-super-high-densitynbspoil-olive monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614797251491-KIVTEKYUY0FIAQWZ5ZQ0/olive+fig+1.jpg Blog - Verticillium Wilt vs. Freeze Damage of Super High Density&nbsp;Oil Olive Fig. 1. Verticillium wilt symptoms in olive trees: darkening or black streaking of xylem tissue resulting in defoliation or rapid shoot death with brown leaves attached. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614797295815-84W158GJDQJJFBX4UAAO/olive+fig+2.jpg Blog - Verticillium Wilt vs. Freeze Damage of Super High Density&nbsp;Oil Olive Fig. 2. Minimum air temperatures data (°F) collected from the CIMIS station located near Roberts Island area. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614797324102-W8L08PBDBYRZX8L65K47/olive+fig+3.jpg Blog - Verticillium Wilt vs. Freeze Damage of Super High Density&nbsp;Oil Olive Fig. 3. Freeze damage in young olive trees produces bark splitting and discoloration in the wood. Affected branches or trees dehydrate and die back. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614797361101-6VMPJ3UCS2RG3DFLT3AL/olive+fig+4.jpg Blog - Verticillium Wilt vs. Freeze Damage of Super High Density&nbsp;Oil Olive Fig. 4. Healthy-looking trees showing wood discoloration beneath the bark tissue due to the freeze damage. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1614797390906-5GW08JLROZQ3JP041DET/olive+fig+5.jpg Blog - Verticillium Wilt vs. Freeze Damage of Super High Density&nbsp;Oil Olive Fig. 5. Symptoms of pronounced wilt due to the freeze damage appear later in the spring to early summer when the weather gets warmer. https://www.sjvtandv.com/blog/2021-principles-of-fruit-amp-nut-tree-growth-cropping-amp-management monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/fungicide-application-in-young-vineyards-protect-pruning-wounds-from-grapevine-trunk-diseases-and-provides-long-term-economic-benefit monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613000152381-TX85PS2IPMEWJZFR5FE5/Figure+1.png Blog - Fungicide Application in Young Vineyards Protect Pruning Wounds from Grapevine Trunk Diseases and Provides Long-Term Economic Benefit https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613000241122-5G4VEXH6IIDA9OUWLW6I/Image+1.jpg Blog - Fungicide Application in Young Vineyards Protect Pruning Wounds from Grapevine Trunk Diseases and Provides Long-Term Economic Benefit Image 1. Young vines collapse (aploplexia) caused by Grapevine Trunk Diseases https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613000332891-6NDMMBE7YJD9R65CF0GD/Image+2.jpg Blog - Fungicide Application in Young Vineyards Protect Pruning Wounds from Grapevine Trunk Diseases and Provides Long-Term Economic Benefit Image 2. New vineyard inter-planted between old vine stumps. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613000405903-GTH396JHI0VYFNDN328C/Image+3.jpg Blog - Fungicide Application in Young Vineyards Protect Pruning Wounds from Grapevine Trunk Diseases and Provides Long-Term Economic Benefit Image 3. Symptoms caused by GTDs (black streaks of esca) in a grapevine cordon. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1613000483637-OLDB07LMIYW206Q2YHFU/Figure+2.png Blog - Fungicide Application in Young Vineyards Protect Pruning Wounds from Grapevine Trunk Diseases and Provides Long-Term Economic Benefit https://www.sjvtandv.com/blog/statewide-prune-day-xa948 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/welcome-doug-amaral monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/statewide-virtual-walnut-meeting monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/other-resources-fungicide-treatment-timing-and-efficacy-tables monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1608249846380-U2HRLDSSGB4AGMZL361A/Fungicide+efficacy+table%2C+almond.png Blog - Other resources: Fungicide treatment timing and efficacy tables Fungicide efficacy table example for almond. Source: http://ipm.ucanr.edu/PDF/PMG/fungicideefficacytiming.pdf https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1608252182479-CJ3487Z89C656LPQ1C5H/fungicide+treatment+timings.png Blog - Other resources: Fungicide treatment timing and efficacy tables Example of fungicide treatment timings for almond. Source: http://ipm.ucanr.edu/PDF/PMG/fungicideefficacytiming.pdf https://www.sjvtandv.com/blog/welcome-tian-tian monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/phytophthora-root-and-crown-rot-amp-paradox-canker-disease-in-walnuts monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1601320818592-YW09XJG6DJJUBB4HPPBK/image-asset.jpeg Blog - Phytophthora Root and Crown Rot &amp; Paradox Canker Disease in Walnuts Fig. 1. Symptoms of Phytophthora disease in walnut trees: dark, water-soaked lesions with irregular margins. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1601321182350-7BS1ZAOGTTYAX8UUPH8V/mo2.jpg Blog - Phytophthora Root and Crown Rot &amp; Paradox Canker Disease in Walnuts Fig. 2. Symptoms of Paradox Canker disease in walnut trees: cankers tend to be more rounded or lobed at their margins. https://www.sjvtandv.com/blog/other-resources-agricultural-economics-webinars monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/field-notes-peach-silver-mite-in-almonds monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1607644774543-U2P7BWHCKER6ZJZN7XUK/Early_leaf_drop_01++Cameron+Zuber.png Blog - Field Notes: Peach Silver Mite in Almonds Photos of ‘Sonora’ almond (top left) with heavy amount of leaf drop (bottom left) and leaves with pest or disease damage (right). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1607644838039-GX2CS515RSDIOOPVBS43/Early_leaf_drop_02+Cameron+Zuber.png Blog - Field Notes: Peach Silver Mite in Almonds Photos of almond leaves from orchard with splotchy browning and rust. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1607644887969-APJEGJYAT5PE3SK4Z7VW/Early_leaf_drop_03+Cameron+Zuber.png Blog - Field Notes: Peach Silver Mite in Almonds Photos of almond leaves with silvery color in orchard (top) and heathy color from a neighboring orchard (bottom). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1607644958634-6R0MR6FPZ3WW1TT8T3NH/Early_leaf_drop_04+Cameron+Zuber.png Blog - Field Notes: Peach Silver Mite in Almonds Photo of peach silver mite from the orchard back lit under a strong lens (left). Back light is causing the peach silver mite to look transparent and grey, but the teardrop body shape is still visible. Photos from UC IPM shows peach silver mite (right top) and twospotted spider mite (right bottom, Tetranychus urticae) under better lighting and similar magnification. https://www.sjvtandv.com/blog/san-joaquin-valley-almond-day-is-january-14-2021 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/statewide-pistachio-day-january-12-and-13-2021 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/muestreo-de-resistencia-a-fungicidas-frac-11 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/cover-crop-calculator monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/weed-science-survey-your-input-needed monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/online-grape-symposium monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/nitrogen-management-course-opens-november-9 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/applying-low-rates-of-glufosinate-to-italian-ryegrass-reduces-susceptibility-to-glufosinate monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/new-report-on-factors-influencing-almond-pollination-fees monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/field-evaluation-of-almond-varieties-results-through-6th-leaf monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1596479421750-AP08SKCQFVYPNIGIAL0K/image-asset.jpeg Blog - Field Evaluation of Almond Varieties - Results Through 6th Leaf Image 1: Nonpareil (left) and UCD3-40 (right) at the Madera site in 2017. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1596479457396-QFEM2IZT0OY6ES7HNYA1/2.jpg Blog - Field Evaluation of Almond Varieties - Results Through 6th Leaf Image 2: Hull rot (induced by Rhizopus stolonifera) at the Madera variety trial site https://www.sjvtandv.com/blog/potassium-nutrition-in-vineyards monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595960879513-ZGWKCW3H37RV7LE1WU9D/image-asset.png Blog - Potassium Nutrition in Vineyards Image 1. Potassium deficiency in grapevines. A: Potassium deficiency in late summer only on leaves that receive direct sun. Image from Compendium of Grape Diseases 1988. B: Interveinal yellowing and necrosis of the edges which often curl upwards. Image from L. Peter Christensen ©Regents of the University of California. https://www.sjvtandv.com/blog/online-air-blast-sprayer-calibration-course-now-available monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1600808467252-3XKFKIPR4QI1X7S9YJ4R/all+three.jpg Blog - Online Air Blast Sprayer Calibration Course Now Available! https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1600808066178-CWR0CWNAONIR53PRQG5Y/extension+campus.jpg Blog - Online Air Blast Sprayer Calibration Course Now Available! https://www.sjvtandv.com/blog/online-pistachio-short-course monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/report-of-cherry-x-disease-phytoplasma-in-the-northern-san-joaquin-valley monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1596493856463-E5CW99C875EHQ5M42J5Y/1.png Blog - Report of Cherry X-Disease Phytoplasma in the Northern San Joaquin Valley Fig. 1. Symptoms of X-disease phytoplasma in sweet cherry, A and B. Small, light colored and misshapen fruit with short stems, C. Small, pale-green leaves with “wavy” margins. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1596493880487-CVE0HV0ESOLALXST2KCZ/image-asset.png Blog - Report of Cherry X-Disease Phytoplasma in the Northern San Joaquin Valley Fig. 2. Symptoms of cherry crinkle leaf and deep suture: Small, pointed fruit and distorted leaves. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1596493912452-XA56GLNEG8LN9XEJPIWU/3.png Blog - Report of Cherry X-Disease Phytoplasma in the Northern San Joaquin Valley Fig. 3. Symptoms of pits and grooves at the graft union in cherry wood on Mahaleb rootstock caused by X-disease phytoplasma. https://www.sjvtandv.com/blog/spur-pruning-and-minimal-pruning-on-raisin-grape monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595442428777-B7ZAZRYV3G567SSBUNXA/zuang+pic+1.png Blog - Spur Pruning and Minimal Pruning on Raisin Grape Image 1. Spur pruned Thompson Seedless vines at beginning of this year near Fresno https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595442913751-9B3JJOO7M4WUSEPS7A50/zuang+pic+2.png Blog - Spur Pruning and Minimal Pruning on Raisin Grape Image 2. (Left) Minimal pruned Thompson Seedless vines at budbreak this year near Kerman. (Right) Minimal pruned Thompson Seedless vines at bloom this year with a larger number of clusters near Kerman. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595442978511-AVFYGPW7ZC7P49F98ERA/zuang+pic+3.png Blog - Spur Pruning and Minimal Pruning on Raisin Grape Figure 1. Correlation between pruning level and raisin yields and data were averaged from three years between Fresno and Madera. From Christensen et al. (1994). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595443003450-THCF74QOFKQUQQO31F9R/zuang+pic+4.png Blog - Spur Pruning and Minimal Pruning on Raisin Grape Figure 2. Correlation between pruning level and harvest berry soluble solids (A) and correlation between pruning level and harvest raisin quality (B). Data were averaged from three years at Fresno and Madera. From Christensen et al. (1994). https://www.sjvtandv.com/blog/pierces-disease-in-the-san-joaquin-valley monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595956958216-33DJ7KK8WYBLAVWSK965/image-asset.png Blog - Pierce’s Disease in the San Joaquin Valley Image 1. From left to right the green, red-headed and glassy-winger sharpshooters. Size comparison measurements are in the bottom left of each individual picture. Photos by Jack K. Clark © Regents of the University of California https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595957104008-5L067NTPU28S9JNRAH25/image-asset.png Blog - Pierce’s Disease in the San Joaquin Valley Image 2. April of 2020 California Department for Food and Agriculture map of glassy-winged sharpshooter distribution within central and southern California. Full map available at: https://www.cdfa.ca.gov/pdcp/Maps/GWSS_Distribution.jpg https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595957239422-0AKCJEFCRGOQNE77T3OH/image-asset.png Blog - Pierce’s Disease in the San Joaquin Valley Image 3. Images of Glassy-Winged Sharpshooter. All images were taken with insect on top of a UC ANR business card for sizing purposes. A: Top view of adult Glassy-Winged Sharpshooter. B: Side view of adult Glassy-Winged Sharpshooter. C: Top view of young nymph Glassy-Winged Sharpshooter. D: side view of late stage nymph Glassy-Winged Sharpshooter. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595957384091-23H4ZH6X189BV127FT2P/lund4.PNG Blog - Pierce’s Disease in the San Joaquin Valley Image 4. Pierce’s disease leaf symptoms. Leaves margins turn yellow (or red in red varieties) then burn back from the margins to center in patches. https://www.sjvtandv.com/blog/managing-walnut-mold monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595891044762-AWXP6KCXFP8VZNQI74JH/Scoop+25.jpg Blog - Managing Walnut Mold Fig. 1 (Left) Brown Apical Necrosis is shown on the left, not to be confused with Walnut Blight, shown on the right, and caused by the bacterial pathogen, Xanthomonas arboricola pv. juglandis. Figure provided by Themis Michailides. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1597253560412-FA50281GWSVR3QQGD6RP/image-asset.jpeg Blog - Managing Walnut Mold Fig. 2. (Right) Moldy, off color nuts which lead to economic loss due to downgrading. Figure provided by Themis Michailides. https://www.sjvtandv.com/blog/walnut-rootstocks monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/ipm-task-at-harvest-identifying-insect-pest-damage-through-harvest-sampling monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595950059712-VDISZMRZ51SBVBBNSLJI/jr1.png Blog - IPM Task at Harvest: Identifying Insect Pest Damage Through Harvest Sampling Fig. 1. Almond kernels (nutmeat) damaged by: a) navel orangeworm, b) peach twig borer, c) Oriental fruit moth https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595950094440-5JB0QTJ8V8FRFBLTQ3XX/jr2.png Blog - IPM Task at Harvest: Identifying Insect Pest Damage Through Harvest Sampling Fig. 2. Almond kernels damaged by: a) ants, b-d) leaffooted bug and brown marmorated stink bug https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595950140657-E7MGGYDFJ0N9AHLIJBR6/image-asset.png Blog - IPM Task at Harvest: Identifying Insect Pest Damage Through Harvest Sampling Fig. 3. Walnut damaged by: a) navel orangeworm, b) codling moth https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595950180658-SCVLVF2RAS77GO65LH4O/image-asset.png Blog - IPM Task at Harvest: Identifying Insect Pest Damage Through Harvest Sampling Fig. 4. Walnut damaged by: a) ants; b) walnut husk fly; c) sunburn https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595950208356-SMZEBTSUMAD6F919NK39/jr5.jpg Blog - IPM Task at Harvest: Identifying Insect Pest Damage Through Harvest Sampling Fig. 5. (Left) Brown Apical Necrosis is shown on the left, not to be confused with Walnut Blight, shown on the right, and caused by the bacterial pathogen, Xanthomonas arboricola pv. juglandis. Figure provided by Themis Michailides. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595950265440-TH07IXG1KGSZ13RSJ7NJ/jr6.jpg Blog - IPM Task at Harvest: Identifying Insect Pest Damage Through Harvest Sampling Fig. 6. (Right) Moldy, off color nuts which lead to economic loss due to downgrading. Figure provided by Themis Michailides. https://www.sjvtandv.com/blog/sywqezggpxrzjdnw9c48ocnm50er9x monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595443985594-B5H0OJDK54OOSXL4YAFD/torres+1.jpg Blog - Bunch Rot Image 1. Advanced bunch rot. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595444024084-YEIP7L4VCHBITVK2M1BE/torres+2.jpg Blog - Bunch Rot Image 2. Decaying flower parts in a cluster at berry set. The decaying tissues is a preferred substrate for Botrytis to initiate growth on. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595444063319-UVOB5H4RIF2NNGNVBES7/torres+3.png Blog - Bunch Rot Image 3. Berries spliting and bleeding at veraison (left) and at maturing (right). These cracks provide easy entry for all pathogens involved in bunch and sour rot. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595444121302-V6ZZONUCL3I2UIAL0S0Z/torres+4.jpg Blog - Bunch Rot Image 4. Powdery mildew scars on table grape. Note the compactness of the cluster. Tight clusters are more prone to develop bunch rots. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595444159302-ATKDLDKH6T81XPABFVCL/torres+5.png Blog - Bunch Rot Image 5. Vinegar flies and other insects are attracted to rotten berries (A and B). They feed and reproduce there (C) and then move to berries with fresh damage (D) transmitting the pathogens involved in the complex. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1595444214984-35YB6LMV27IXXEC0TE8Z/torres+6.png Blog - Bunch Rot https://www.sjvtandv.com/blog/n6j2iyyc22zrvsinopxc9x8ub2y0lz monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1589308246849-5WYHKW36WZ3JNNX3TU7V/Screen+Shot+2020-05-12+at+11.28.33+AM.png Blog - Unusual Pistachio Tree Bloom and Leaf Canopy Development in Kern County Photo 1. Delayed leaf-out and flower bud push, especially in the upper canopy, of Golden Hills trees near Buttonwillow, Kern County, April 2020 (Photo by Craig Kallsen) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1589308390140-UMHCYF7URCN97MNSFAYU/Screen+Shot+2020-05-12+at+11.28.47+AM.png Blog - Unusual Pistachio Tree Bloom and Leaf Canopy Development in Kern County Photo 2. Sparse leaf canopy and inflorescense development of pistachio trees in early May along Highway 65 in Kern County (photo by Craig Kallsen) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1589308792800-1BOEMG3S0KYG3UE0XQSD/Screen+Shot+2020-05-12+at+11.29.20+AM.png Blog - Unusual Pistachio Tree Bloom and Leaf Canopy Development in Kern County Photo 3. Botrytis symptoms on a Randy male (Photo courtesy of Justin Hayslett – Buttonwillow Warehouse Company) https://www.sjvtandv.com/blog/ruqypozink7i1bb9isyx0zqazjyzxi monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1573845611780-4O570V8YZB29MR3ARQRT/Fulton_fire+impacts_20181003_102931.jpg Blog - What impact did 2018’s wildfires have on orchards? Unusual, late season leaf discoloration in an otherwise healthy walnut orchard in Tehama County. Photo: Allan Fulton https://www.sjvtandv.com/blog/c5idsntte0raissnzdmixw7dfkri45 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1592334461535-VBM2ROVCTU9N0XZYULF1/fig+1.PNG Blog - Choosing Amendments for Effective Salinity Management Figure 1. Stress in response to a high salt load starts with osmotic stress, where the ability to pull in water by osmosis declines due to the low solute differential between the root sap and the soil water. This reduces tree transpiration, which limits cell expansion for shoot growth. When the tree can no longer exclude salts, it begins to accumulate in the trunk and leaves. Symptoms of specific ion toxicity include leaf burn and nutritional disorders. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1592334691841-KPQA6U8T2ZK458HZVQ00/fig+2.png Blog - Choosing Amendments for Effective Salinity Management https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1592428603490-2WKGUWBPK06QWZUX5CDD/fig+3.jpg Blog - Choosing Amendments for Effective Salinity Management Figure 3. Organic amendments like compost can be a source of salt and can increase the accumulations of salts from irrigation water at the soil surface. Obtain a laboratory analysis of amendments before application. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1592429227541-0K5IGEVIJAMCAC2TA488/fig+4.PNG Blog - Choosing Amendments for Effective Salinity Management Figure 4. 15 ton/ac band application of elemental sulfur shanked in with a chisel shank to a depth of 28” prior to planting. Photo credit Blake Sanden. https://www.sjvtandv.com/blog/update-on-entomology-research-in-dried-fig monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1588693730847-OLQRI2KCD222JTIAR4D0/fig+1.jpg Blog - Update on Entomology Research in Dried Fig Fig 1: NOW larvae in a late season mummified fig fruit. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1588694599541-7NMZTQLNP41MJXA8WO66/Figure+3.PNG Blog - Update on Entomology Research in Dried Fig Figure 3. NOW catch was reduced in pheromone traps in mating disruption plots. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1588694636505-XHFZ7UV2M7Y3SMI0119Q/Figure+4.PNG Blog - Update on Entomology Research in Dried Fig Figure 4. Fig infest from NOW was not consistently influenced by mating disruption. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1588694710038-MEYUKX52HIXXZDPK9YSW/Figure+5.PNG Blog - Update on Entomology Research in Dried Fig Figure 5. Preliminary data. In most months, only about 50% of NOW captured in fig orchards actually originated on figs, indicating that many adults move into fig orchards from non-fig hosts. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1588694737610-9UHJD4NG903B82Z3JYOQ/Figure+6.PNG Blog - Update on Entomology Research in Dried Fig Figure 6. Most insect infest was due to NOW and DFB. https://www.sjvtandv.com/blog/survey-request-from-new-soil-and-nutrient-advisor monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/phylloxera-in-the-san-joaquin-valley monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587663693453-MA84EPX5J8FWI9XMSK8O/dolla+karl.PNG Blog - Phylloxera in the San Joaquin Valley Image 1 Phylloxera reproductive cycle. The stages of the phylloxera reproductive cycle are shown from left to right. Starting off as an egg, that hatches to a nymph commonly called a crawler, which matures into a sedentary adult laying asexual (clonal) eggs. The phylloxera life cycle is placed on a one-dollar bill for size comparison. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587664019902-GFCCNDDUXACTVXV62SDN/karl+abcd.PNG Blog - Phylloxera in the San Joaquin Valley Image 2 Phylloxera Nodosities. A variety of phylloxera caused nodosities including: A. a hooked gall with little swelling; B. a swollen gall with no hooking; C. a gall with exaggerated hooking with no swelling; D. a hooked and swollen gall. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587664503112-PTNU5FPM2NJ76O7936YG/karl+abc.PNG Blog - Phylloxera in the San Joaquin Valley Image 3 Phylloxera Foliar Galls. A series of phylloxera foliar galls going from: A. young crawlers establishing feeding sites on a young leaf; B. a mature phylloxera gall; C. an opened phylloxera gall exposing the feeding adult and her clutch of eggs. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587664554114-Q6NAGXH1GSERO5H6HF6I/image-asset.png Blog - Phylloxera in the San Joaquin Valley Image 4 Phylloxera Tuberosities. Tuberosities formed on the roots of: A. Chardonnay, and B. Colombard. Red arrows point to callus tissue formation on area were lignified tissue has cracked. These sites are where secondary soil fungi can gain access to root system leading to root death. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587664617967-15E428RZHHUBOQHB4R6B/Vit+Tips+April+2020.jpg Blog - Phylloxera in the San Joaquin Valley Table 1 Phylloxera Survival vs Temperature. The survival rate of different stages of phylloxera are plotted against a range of temperature. *Data from Granett and Timper 1987. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587664647985-ZYZ71DN80OIKXXXVA37A/Vit+Tips+April+2020-2.jpg Blog - Phylloxera in the San Joaquin Valley Table 2 Vineyard Soil Temperature. The average monthly soil temperature was collected at 15 cm (5.9 inch) in Spreckels (Monterey county) and Hopland (Mendocino county), and at 20 cm (7.9 inch) for Fresno county. Dashed lines indicate the upper and lower temperature limits of crawler survival. *Data from Granett and Timper 1987. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587664701949-FT0TD5IC6A2D9U9PW62B/Vit+Tips+April+2020-3.jpg Blog - Phylloxera in the San Joaquin Valley Image 5 Phylloxera and Water. A. Phylloxera getting stuck to water drop; B. phylloxera getting surrounded by water drop C. phylloxera drowning in mass within a water drop. https://www.sjvtandv.com/blog/l43ucibv3ctotrrrlm18e4qj3qzmmj monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1588698369507-PLZZ5I9KYP4872AC9CIQ/Figure+1.jpg Blog - The Effect of Soil Compaction on Tree Health Figure 1: McFarland loam with a loose, friable structure. Source: Blake McCullough-Sanden https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1588699977940-5MLB1XY74ZURTUBH64AN/Figure+2.jpg Blog - The Effect of Soil Compaction on Tree Health Figure 2. http://www.omafra.gov.on.ca/english/crops/field/news/croptalk/2017/ct-0917a3.htm https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1588700811547-DDAITRO3HV8PCGVJND56/Figure+3.jpg Blog - The Effect of Soil Compaction on Tree Health Figure 3: photo of a recently ripped field. Notice the large clumps of cemented soil. Source: Allan Fulton https://www.sjvtandv.com/blog/gcadscs2c67bbfhvm82y3kmfibu3vz monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/assessing-fungicide-resistance-in-your-vineyard monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587663094080-RUUA3T3HNRKXFCWHF75S/karl+lund+graph.PNG Blog - Assessing Fungicide Resistance in Your Vineyard https://www.sjvtandv.com/blog/ncp6u5qp6g1tlycsjv0koz4geslmri monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587658380651-UUSTRT2YVTGDLYRUVHRO/jhalendra+first.png Blog - ID, Monitoring, and Management of Plant Bug and Stink Bugs in Almond Orchards Fig. 1. Piercing and sucking type of mouthpart of large and small true bugs https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587658435878-T4C073J2HUM28YTTEH65/jhalendra+1.png Blog - ID, Monitoring, and Management of Plant Bug and Stink Bugs in Almond Orchards Fig. 2. Leaffooted bug damaged almond kernels https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587659717376-SL42YEL1SFAYJZMRTDHL/3all.PNG Blog - ID, Monitoring, and Management of Plant Bug and Stink Bugs in Almond Orchards Fig. 3. Large plant bug and stink bugs in almond orchards https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587659491658-89N3K5NZQAXHJRIPLI1L/3+ab.PNG Blog - ID, Monitoring, and Management of Plant Bug and Stink Bugs in Almond Orchards Fig. 4.A) Clear but minimal gumming in almond due to native stink bug feeding in almonds (Source: The Almond Doctor) B) stink bug egg mass with barrel-shaped eggs https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587659798383-EHUGFQE7IMFM7VD10P4G/Jhalendra+6.png Blog - ID, Monitoring, and Management of Plant Bug and Stink Bugs in Almond Orchards Fig. 5. BMSB damaged almond hull showing different feeding signs. Notice clear gumming (multiple) with big sized ‘blobs’ on the fruit externally https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587659866420-H359I6RUBH82MJ6UHRIJ/image-asset.png Blog - ID, Monitoring, and Management of Plant Bug and Stink Bugs in Almond Orchards Fig. 6. Almond kernel at harvest damaged by BMSB feeding at different times of the year. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587660068306-VZ83OSX8LJ8JINRGO23X/jhalendra+8.png Blog - ID, Monitoring, and Management of Plant Bug and Stink Bugs in Almond Orchards Fig. 7. Substantial nut drops due to BMSB feeding in almond orchard in Turlock. Note that border row (1st row) has visibly higher level of damage compared to the 3rd and 5th row of the orchard. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587660578405-O2XO3RTC2O4F7RUQJD12/Fig.+8.jpg Blog - ID, Monitoring, and Management of Plant Bug and Stink Bugs in Almond Orchards Fig. 8. Sticky panel trap with BMSB lures for BMSB monitoring https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587660615262-A26RC2FMP7O7L89S64O5/jhalendra+10.png Blog - ID, Monitoring, and Management of Plant Bug and Stink Bugs in Almond Orchards Fig. 9. Different life stages of BMSB (from left to right: 1st instar nymphs coming out from the eggs, 2nd, 3rd, 4th, 5th instars, adult male, adult female; Photo: W. Hershberger, stopbmsb.org) https://www.sjvtandv.com/blog/ip5e4uifiwoixateamofuya4bdy37z monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/kfkxwynqpr3v7r0ajq5ik2swej0k0k monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587413438653-XISG3TX3OT7486FQYJ92/Picture1.png Blog - Compost May Not Improve Orchard Performance Fig. 1: 30 tons of compost per acre applied before planting. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1587413484142-KU5TUE59GVMX8UCB58W6/Picture2.png Blog - Compost May Not Improve Orchard Performance Fig. 2: 10 tons of composted green waste applied annually https://www.sjvtandv.com/blog/managing-spotted-wing-drosophila-in-blueberry-and-cherry-orchards-in-california monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585939243438-V5QMXVDHRU09OMIL25EI/Slide1.JPG Blog - Managing Spotted Wing Drosophila in Blueberry and Cherry Orchards in California https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585939303559-TULIWZJ54C9ZW7PNADCS/Slide2.JPG Blog - Managing Spotted Wing Drosophila in Blueberry and Cherry Orchards in California https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585940121587-LOJRED0I88XKEVCCD3S4/Slide3.JPG Blog - Managing Spotted Wing Drosophila in Blueberry and Cherry Orchards in California https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585940924199-7J8EVYRDP3X2G0OM2VCR/Slide4.JPG Blog - Managing Spotted Wing Drosophila in Blueberry and Cherry Orchards in California https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585941020050-64MHUJIY0ZNNIBLOBR3Z/Slide5.JPG Blog - Managing Spotted Wing Drosophila in Blueberry and Cherry Orchards in California https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585942430941-FV44QZUGCC34EFI85N7L/Slide6.JPG Blog - Managing Spotted Wing Drosophila in Blueberry and Cherry Orchards in California https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585942477477-XV9Y07AK0SCYEM3Z5CT7/Slide7.JPG Blog - Managing Spotted Wing Drosophila in Blueberry and Cherry Orchards in California https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585939185030-Q2ZBD4R0RYYKGIZUDJNB/table1.png Blog - Managing Spotted Wing Drosophila in Blueberry and Cherry Orchards in California Table 1. Efficacy of various insecticides to use against spotted wing drosophila (SWD) in cherries (Table Credit: Robert Van Steenwyk, UC Berkeley). (Note: The insecticide information here may not be up to date. Always check the label and legality of the pesticide prior to use.) https://www.sjvtandv.com/blog/delayed-irrigation-in-walnuts monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948036614-J5PILD8P78O849DPZ9H7/1.jpg Blog - Delayed Irrigation in Walnuts https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948228245-P1FC64YP0DV5ZOZ6Z93F/2.jpg Blog - Delayed Irrigation in Walnuts Photos of over-irrigation in walnuts. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948331520-VPWS4R4A8G8MO6KJZWXW/4.jpg Blog - Delayed Irrigation in Walnuts https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948292103-PP1FGGZQH7M318QZA38E/3.jpg Blog - Delayed Irrigation in Walnuts https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948364105-H4F3XSE7G9V3O10R2N0R/5.jpg Blog - Delayed Irrigation in Walnuts https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948390483-GFUEESYH4WGMM5FDOQCI/6.jpg Blog - Delayed Irrigation in Walnuts https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948424847-2U93OU3BSAF28TSUE7KX/7.jpg Blog - Delayed Irrigation in Walnuts https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948105571-8VZT5F2QXLG1TTVV3TJI/table+1.png Blog - Delayed Irrigation in Walnuts Table 1. Baseline values for walnuts. To use, access the temperature (in °Fahrenheit or °F) and relative humidity (percent or % RH) for your location at the time of the reading (1 pm to 3 pm). Find the temperature on the left side of the table, then follow that line over to the corresponding relative humidity. The value inside the box is the baseline for walnuts at that given temperature and relative humidity. Keep in mind the baseline value is negative, and the pressure chamber value is negative; therefore, two bars below baseline will be two numbers more negative than baseline. For example, follow 64°F on the table over to 30% RH, baseline -3.7, therefore one to two bars below baseline would be -4.7 or -5.7, respectively, which would be a good time to irrigate. If the trees read -1.7, this would mean that these trees were above baseline, no need for irrigation. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948450532-VGQSNHZRY15WADS6FG93/image-asset.jpeg Blog - Delayed Irrigation in Walnuts https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948466267-VGZDBOVWW8K2F5VW3WGG/image-asset.jpeg Blog - Delayed Irrigation in Walnuts https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948481757-ZMVHT4YJE4T33RT29SSD/10.jpg Blog - Delayed Irrigation in Walnuts https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948509849-U2JVLT1776APP1YS1XB7/11.jpg Blog - Delayed Irrigation in Walnuts https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1585948528401-7I6ITTMBN28SLKX2LIKB/image-asset.jpeg Blog - Delayed Irrigation in Walnuts https://www.sjvtandv.com/blog/xpldo2pd4nhfcm3p8kfi77wkpnfxt9 monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/coronavirus-help-for-farmers monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/e190g5iux4hq92230l5c8g8xcid3a9 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1582755717519-O6CSZU9GIL3A6JTV0KCH/Female+pistachio+flowers+closeup.JPG Blog - Dust from mowing and tilling could reduce pistachio fruit set https://www.sjvtandv.com/blog/how-does-walnut-bud-break-and-shoot-elongation-differ-from-pistachio-and-almond monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1583779105406-SZOSP4KRDV3JT5M98PXJ/1.jpg Blog - How does walnut bud break and shoot elongation differ from pistachio and almond? https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1583779133507-AO0I9D71DWCTARKND3YP/2.jpg Blog - How does walnut bud break and shoot elongation differ from pistachio and almond? Figure 1. Catkins and compound buds are borne on the prior year’s shoot. (Illustration: H. Hartzog) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1583779184275-X5IJ53OKPH3YOB0MCE0K/3.jpg Blog - How does walnut bud break and shoot elongation differ from pistachio and almond? https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1583779292460-1LEXWU1BHKNXEFUT3F4S/4.jpg Blog - How does walnut bud break and shoot elongation differ from pistachio and almond? https://www.sjvtandv.com/blog/9qldkme9lqkq9l7w81m4py2wcm7qgx monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1582753818157-BL7T3GJUUTXT162WUD9Q/Picture5.png Blog - Almond bloom intensity may be affected by prior year’s irrigation practices and diseases https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1582753847141-DYG6DUAL1WGV20KKE482/Picture3.png Blog - Almond bloom intensity may be affected by prior year’s irrigation practices and diseases https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1582753897050-GNTWFRJXKQD9TQLG0PZ4/Picture4.png Blog - Almond bloom intensity may be affected by prior year’s irrigation practices and diseases https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1582753958650-7W2344J9ZODAOQ9N5JCR/Picture1.png Blog - Almond bloom intensity may be affected by prior year’s irrigation practices and diseases https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1582754658814-M3LRMTIG4P2TYM0W30HJ/Picture2.PNG Blog - Almond bloom intensity may be affected by prior year’s irrigation practices and diseases https://www.sjvtandv.com/blog/l36uuj5leo3mtbcpyd7uf553ojecb8 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1582755939929-3JUW8F5MVASJA4GVJYPI/qr.png Blog - Please Take this Walnut Rootstock Survey https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1582756346070-WCCK3XV8L5EL29VJNHMG/2018-10-08+14.06.41-2.jpg Blog - Please Take this Walnut Rootstock Survey https://www.sjvtandv.com/blog/pocket-gopher-management-dont-wait-too-long monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/a0gn5q2w7wc509qg5d9w2dywlciwcg monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1581092572655-5FGOR7TKO8WMTOILOSXA/9886.jpg Blog - Activator Spray Adjuvant Selection: Crop Spraying Agricultural spray adjuvants are materials added to the spray tank when loading the sprayer. Photo by Jack Kelly Clark. https://www.sjvtandv.com/blog/honey-bee-colonies-pollination-bee-safety-and-beekeeper-responsibilities monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/bacterial-canker-and-blast-in-california-fruit-and-nut-trees monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1580160052085-724BNU6V2YS9AO14XDBX/image-asset.png Blog - Bacterial Canker and Blast in California Fruit and Nut Trees Photo by P. Gordon. Cankers caused by P. syringae have spotting https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1580160084086-K8JRK1O285VT9BFJOVJ0/Picture2.png Blog - Bacterial Canker and Blast in California Fruit and Nut Trees Photo by P. Gordon. Cankers caused by P. syringae do not travel below the soil surface https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1580160213975-QEHHR5Z8G13V1AHGSYV9/Picture3.png Blog - Bacterial Canker and Blast in California Fruit and Nut Trees Photo by M. Yaghmour. Cherry tree in Kern Co. showing streaks and flecks of bacterial canker https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1580160255335-KIVH30SLIS4J3C2Q9QKH/Picture4.png Blog - Bacterial Canker and Blast in California Fruit and Nut Trees Photo by E. Fichtner. In extreme cases P. syringae will kill buds before they open https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1580160292183-FJRGBIBVN1R68GUFUVAF/Picture5.png Blog - Bacterial Canker and Blast in California Fruit and Nut Trees Photo by JK Clark. Bacterial blast https://www.sjvtandv.com/blog/sudden-vine-collapse monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/vineyard-post-harvest-management-tips monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1576601207970-8ERI0O3499WDCB1GSKVU/image-asset.png Blog - Vineyard Post-harvest Management Tips Figure 1. Wine grape canopy after mechanical harvest https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1576601236303-RKT8UZQCOSWRWFOKWGD0/picture+3.PNG Blog - Vineyard Post-harvest Management Tips Figure 2. Post-harvest flood irrigation https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1576601274973-GVXMF015562Y94GZPAB3/picture+4.PNG Blog - Vineyard Post-harvest Management Tips Figure 3. Soil sulfur band application post-harvest https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1576601318388-RY03C4YRTRTOH9BS95AB/picture+5.PNG Blog - Vineyard Post-harvest Management Tips Figure 4. More than double number of spurs yielded from mechanical pruning than hand pruning https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1576601356622-049QW5DNFXKTM6SPGM8E/image-asset.png Blog - Vineyard Post-harvest Management Tips Figure 5. Compact Petite Sirah cluster and bunch rot https://www.sjvtandv.com/blog/ants-monitoring-and-your-management-options monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1566835982538-QPLN374F7Y99XKM4F96D/image-asset.png Blog - Ants: Monitoring and your Management Options Fig. 1. (A) Diagram of an indicating five key coarse morphological characteristics. (B) Southern fire ant, Solenopsis xyloni. Picture by April Nobile. From www.AntWeb. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1566836050716-1V4EX8S2NG0355GK2DFP/fig+2+a.jpg Blog - Ants: Monitoring and your Management Options Fig. 2A Nest of native gray ant. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1566836097012-LBGJM9ZO0KWA48NNYSUB/fig+2+b.png Blog - Ants: Monitoring and your Management Options Fig. 2B Nest of southern fire ant. Both nests have multiple entrance holes with tailings dispersed over a large area. Tailings of southern fire ant tend to be smaller grain and hilly compared to native gray ant. https://www.sjvtandv.com/blog/mfg07cm7ee4r4lg5s95dojw1lhotm4 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1570743166944-KNM58ICBKZJEOFSC0BFN/Table+1.png Blog - Chemical and biological control of grape nematodes in the San Joaquin Valley Table 1. Nematode population sizes considered to be Low, Medium and High for a range of different nematode types and species at different times of the year. McKenry, 2013 https://www.sjvtandv.com/blog/red-imported-fire-ants-in-merced-and-stanislaus-county-almond-orchards monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565286786142-UKAW1GNMT18SXJGFTE9E/Picture1.jpg Blog - Red Imported Fire Ants in Merced and Stanislaus County Almond Orchards Figure 1. Direct feeding damage to almond caused by red imported fire ant. Photo by K. Tollerup. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565286818998-2IMWFE6LB0YDW8N4RV2U/Picture2.jpg Blog - Red Imported Fire Ants in Merced and Stanislaus County Almond Orchards Figure 2. Red imported fire ant. Photo from www.antweb.org. Accessed 7 June 2018. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565286861854-9DSOQ8VQSKPH3BS1N3MY/Picture3.jpg Blog - Red Imported Fire Ants in Merced and Stanislaus County Almond Orchards Figure 3. Red imported fire ant nest in an almond orchard. Photo by K. Tollerup. https://www.sjvtandv.com/blog/do5zo1qavtri4oak675esg1u2sokch monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1576515538302-QRHU9QM4PCWYS7W3JLOK/graph+1.PNG Blog - Managing Diseases in a Rainy Year Figure 1. Comparison between 2019 January to September monthly maximum and minimum temperatures and the annual average. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1576515573869-F17Q5TGC3F76U6Y1EOZW/graph+2.PNG Blog - Managing Diseases in a Rainy Year Figure 2. Differences between 2019 precipitation and annual average https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1576515600027-IKOV98TBWJQLQAR9NECA/Picture+1.PNG Blog - Managing Diseases in a Rainy Year https://www.sjvtandv.com/blog/ntvvkolmw2xehg1t2efenhgjvxqrzx monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1573771756044-S3HEKK0ZQB54ZEI4UH8E/fig+1a.jpg Blog - Views from Almond Professionals on Whole-Orchard Recycling Almond wood chips on the floor of a recycled orchard in Stanislaus County (2/2019), ready to be incorporated before the orchard is replanted. All photos by Amber Kerr. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1573771785634-FNXFP28Z592PC8CR8HX2/fig+1b.jpg Blog - Views from Almond Professionals on Whole-Orchard Recycling A newly replanted orchard in Stanislaus County (2/2019) that was recycled in Fall 2018. Some wood chips are still visible on soil surface. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1573771872184-YPU25VA838HISKLFD47P/graph+1.PNG Blog - Views from Almond Professionals on Whole-Orchard Recycling Most important benefit of whole-orchard recycling in almonds, according to online survey participants in December 2018. (Answers were mutually exclusive; respondents could only pick one.) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1573771908917-6XQPM2775IYRPWKQSYR2/graph+2.PNG Blog - Views from Almond Professionals on Whole-Orchard Recycling Most important drawback of whole-orchard recycling in almonds, according to online survey participants in December 2018. (Answers were mutually exclusive; respondents could only pick one.) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1573771946471-YDU7FPR73CGM2IXNBLJI/tree+figure.jpg Blog - Views from Almond Professionals on Whole-Orchard Recycling No chips are visible on the floor of this fifth-leaf Nonpareil / Aldrich orchard, which was planted on a recycled orchard block in 2015. (Merced County, CA, 3/2019) https://www.sjvtandv.com/blog/fungal-canker-diseases-affect-productivity-of-sweet-cherry-orchards monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1573846466116-N1ZQRY2COZLLZGKUQMDJ/fig+1.jpg Blog - Fungal Canker Diseases Affect Productivity of Sweet Cherry Orchards Symptoms of canker diseases in sweet cherry, A. Cytospora branch canker/dieback, B. Calosphaeria branch canker, C. Circinate groups of C. pulchella perithecia beneath the periderm, D. Eutypa branch canker/dieback. https://www.sjvtandv.com/blog/update-on-the-area-wide-ipm-program-for-virginia-creeper-leafhopper-in-the-north-coast monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568835417269-8MIL8JSJJK6JJR4MYK81/bug.jpg Blog - Update on the area-wide IPM program for Virginia creeper leafhopper in the North Coast Western Grape Leafhopper https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568835458542-DKVOH2EHRT4F9Q6XFNUH/bug2.jpg Blog - Update on the area-wide IPM program for Virginia creeper leafhopper in the North Coast Virginia Creeper Leafhopper https://www.sjvtandv.com/blog/habitat-diversification-for-pest-management-in-vineyards-more-complicated-than-it-seems monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568918725579-6POMF2V1V3BYHGRDX2VA/1.jpg Blog - Habitat Diversification for Pest Management in Vineyards— More Complicated Than It Seems Ammi majus blooming in a Sonoma County vineyard. All photos courtesy of Houston Wilson. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568920133907-CX8LTQ4I1KMJ3CHFW9Q2/2.jpg Blog - Habitat Diversification for Pest Management in Vineyards— More Complicated Than It Seems Phacelia tanacetifolia blooming in a Napa County vineyard. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568920205541-B33YBYG32E8PH0TFP347/3.jpg Blog - Habitat Diversification for Pest Management in Vineyards— More Complicated Than It Seems A common legume/grass winter cover crop blend in a Napa County vineyard. https://www.sjvtandv.com/blog/u9hr7o6dtyudtx0wfjkiv0i90q1jo3 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568909677923-U8WNS06Q9G0XFFP7BK9L/1.png Blog - Fall and Winter Irrigation Management for Nut Crops Figure 1. Dendrometer mean daily shrinkage and overall growth (brown line) from the end of September to end of October 2014 for Howard Walnut trees in a trial at UCDavis. The blue arrow indicates the point where tree growth levels off for the season. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568909703952-25Z99QR4ZT4L851YXK71/2.jpg Blog - Fall and Winter Irrigation Management for Nut Crops Figure 2. Picture of late season (November, 2016) health and vigor of young walnut trees in a variable irrigation trial. Trees on the left received normal irrigation to match ETc throughout the season, and trees on the right received excess water. Trees on the right defoloiated a full two weeks before those on the left. Photo credit: Bruce Lampinen https://www.sjvtandv.com/blog/lmw8891acor3shgis21lpq2r5rf68i monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1570742747391-KTJFAV2M2C3MUFZFYLZ8/1.jpg Blog - Grapevine Heat Stress and Sunburn Management Figure 1. Berry shrivel, raisining, and sunburn during heat wave https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1570742798242-PZIQAJM2U6CQ4QM4RTK9/2.jpg Blog - Grapevine Heat Stress and Sunburn Management Figure 2. Mechanical leafing on morning side of the canopy at bloom https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1570742869966-IMMEB2380QFE4S88GV00/3.jpg Blog - Grapevine Heat Stress and Sunburn Management Figure 3. Shade cloth on fruit-zone at afternoon side of the canopy https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1570742933839-KFZCQ7P7DSSM8J5KU0R2/4.png Blog - Grapevine Heat Stress and Sunburn Management Figure 4. Sun protectant of CaCO3 foliar spray post veraison https://www.sjvtandv.com/blog/strongnitrogen-fertilization-is-important-on-first-year-second-generation-almond-trees-following-whole-orchard-recycling-strong monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568992371215-9287B2CSOLIWXIWXNW9F/Annotation+2019-09-20+080653.png Blog - Nitrogen fertilization is important on first-year second generation almond trees following whole orchard recycling Figure 1. Percent Nitrogen in leaf tissue from May-September. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568992398258-84SY949P4BURO3WAN8ZR/Annotation+2019-09-20+080714.png Blog - Nitrogen fertilization is important on first-year second generation almond trees following whole orchard recycling Figure 2. Trunk diameters of first year almond trees given additional monthly applications of nitrogen. https://www.sjvtandv.com/blog/why-you-should-be-using-stem-water-potential-as-an-irrigation-management-tool monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1570218674086-526E2ZZJXW8GF7602TT7/image-asset.jpeg Blog - Why you should be using stem water potential as an irrigation management tool Image 1: Soil-plant-atmosphere continuum of water potentials https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1570218700332-FAG5WF9PUTVRF0KGN3BS/image-asset.jpeg Blog - Why you should be using stem water potential as an irrigation management tool Image 2: Bagging leaves to obtain midday stem water potential https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1570218728936-ZQ486MGLJLB8E8HWEGRN/image-asset.jpeg Blog - Why you should be using stem water potential as an irrigation management tool Image 3: Measuring stem water potential https://www.sjvtandv.com/blog/walnut-news-and-fruit-for-thought-summer-2019 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568918251673-1QNOZ2BNB0SIR3HREYPO/kari2.png Blog - Walnut News and Fruit for Thought - Summer 2019 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568918316660-6Q565UG2R2WSIRP55XXW/kari.png Blog - Walnut News and Fruit for Thought - Summer 2019 https://www.sjvtandv.com/blog/strongpreventing-orchard-establishment-and-management-pitfalls-with-online-toolsstrong monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568844780188-OHUK5HBL7ZR8N8LJQQI0/1.png Blog - Preventing orchard establishment and management pitfalls with online tools Figure 1. The SoilWeb Earth tool allows you to view maps in a 3-D display. You must have Google Earth or some other means of viewing KML files installed on your desktop computer, tablet, or smartphone. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568844799887-QCTDKK130CVZ7CWQI5W3/2.png Blog - Preventing orchard establishment and management pitfalls with online tools Figure 2. UCCE Kern fillable spreadsheets are designed for farm managers to input information from soil chemical analyses to make leaching fraction and amendment determinations. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568844825853-KS7YXJZ0PTKRJ8MNO96D/3.png Blog - Preventing orchard establishment and management pitfalls with online tools Figure 3 Fertilization guidelines on this CDFA-FREP sponsored website are based on results from orchard studies conducted by University of California researchers and Cooperative Extension advisors. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1568844868173-1H3R1PI29OS3QOABCJ98/4.png Blog - Preventing orchard establishment and management pitfalls with online tools Figure 4. http://informatics.plantsciences.ucdavis.edu/Brooke_Jacobs/index.php https://www.sjvtandv.com/blog/winter-juvenile-tree-dieback-wjtd-a-problem-in-pistachio-in-the-san-joaquin-valley monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565287341128-HTCJID1CXR7JB650GRV2/Pistachio+Winter+Juvenile+Tree+Dieback_Kallsen.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Photo 1. Pistachio tree showing typical symptoms of attached leaves in Winter Juvenile Tree Dieback (WJTD). Leaves remain attached if the frost event occurred before leaf drop (typically in late October or early November). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565287463581-LYE3LTVQWEOAS4VLQJMA/graph.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Figure 1. Low temperatures (measured at a height of approximately 4 ft. above the ground) on various dates where severe WJTD occurred to moderately hardened-off juvenile pistachio trees in various low-elevation, salt-affected orchards in the southern San Joaquin Valley. This figure should be considered very preliminary and data are taken from freeze events over the past ten years. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565287528429-5PZQSOTFLCJFSPTPRG2M/graph2.JPG Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Figure 2. The chart above was prepared from temperature data collected in two 5th-leaf orchards during the night of December 6-7, 2012. On several other nights in early December, temperatures fell to similar levels. The trees in the warm orchard showed no WJTD, while those in the cold orchard had approximately 20% severe WJTD. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565287719711-75ORN28K106PO10UWKYE/informational+on+1+and+2.JPG Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565287641516-02N832TUOIMUI8LB5OW5/tree+image+2.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565287617615-TJX9JO5BWLNQSMM63OC6/tree+image+1.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565287849993-5T4PUM05PX5DPS4RHS2T/informational+on+3+and+4.JPG Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565287865727-P5K8W46B5MNDGA00YR8X/tree+image+3.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565287887932-PK6OI3DO45YA11OLCVJK/tree+image+4.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565288060537-30A2UTSNH1U8BVLJZRG7/image+5.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Note picture of a pistachio tree having a P. integerrima rootstock taken Dec. 10, 2010. The tree was well watered until this date. Note that the scion leaves have dried indicating some degree of dormancy in the scion, whereas the rootstock sucker leaves remain green and succulent. What is happening at the graft union as the P. vera scion goes dormant and the P. integerrima rootstock does not ? https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565288238698-9499ZTWELKXHR293WD2G/image+7.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley This photo shows an area in the graded and weedless area of the orchard. The smaller trees in the bottom photo were replants or grafted suckers from similarly affected trees by WJTD the previous year. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565288174929-Q794QRNHLPX90J6CNPMG/image+6.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley This photo shows the abrupt change in weed growth within the orchard because of land grading conducted before the orchard was planted. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565288301459-HS4MT2TNWMZ7EDMI8FZO/graph+3.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Figure 3. The sodium absorption ratio at three locations in relation to the irrigation hose ratio at different soil depths (upper left, upper tight and lower left charts) and as an average (lower right chart) with increasing distance from the worst affected trees in the center of the hotspot (marked as 0 on the x-axis). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565288365843-1H44EE97NM2YZNGH0TQD/graph+4.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Figure 4. EM38-DD readings (top left and right charts) and saturation extract laboratory electrical conductivity (EC) (bottom right chart) with increasing distance from the worst affected trees in the center of the hotspot. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565288670105-GW3LAGJIPQEYXW5GS570/image-asset.jpeg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Plant tissues treated with Lugol’s solution will turn a dark color if starch is present. Note that starch appears to be completely absent in this unaffected tree treated with Lugol’s solution, indicating that the tree, apparently, was able to mobilize starch reserves in the rootstock for new canopy growth in May. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565288746712-89WYZPHXF9WLWNB7HLGC/image+8.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Note the well-marked line of demarcation (dotted black line) in the wood under the bark at the graft union in this WJTD-affected tree in May. This line, also, marks the graft union. The graft union of this tree looked identical to that of the tree in the picture on the right until stained with Lugol’s solution. The dark stain below the graft union indicates presence of starch, as stained with Lugol’s solution below the graft union, with little starch remaining above the union in the scion. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565288864617-B4P0307A2POI9KOIZJGM/image+10.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Note gumming from graft union. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565288890015-M766XFK7HNIXODAD58ZB/image+11.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Note UCB-1 rootstocks growing absent the scion. When the scion dies as a result of WJTD, the rootstock often regrows vigorously, suggesting the grafted tree is more frost sensitive than the rootstock alone. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565289556961-GCXQRPIXWUIDW9DAZ8LC/1.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Damaged shoot with dead vegetative and flower buds in spring. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565289609729-IY8TFNE66T37JXW66LCT/3.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Earlier leaf out than neighboring unsprayed trees. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565289581214-VDNPHKVM0OVIH3ST7FUS/image-asset.jpeg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley Trunk showing gumming. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565289758231-N8OQOL3JFA8JPQ20KVWC/tree+wrap.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565289835968-5WZSGZENI9PSR3DOG1D8/graph+5.JPG Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565289903141-GZ23CKI3IA3BERPKKYWX/tree+wrap+again.jpg Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565290025699-VELTN0OOYY94ZJ1FSG2K/final+pic.JPG Blog - Winter Juvenile Tree Dieback (WJTD) – a Problem in Pistachio in the San Joaquin Valley https://www.sjvtandv.com/blog/vine-mealybug-management monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565293661929-2ROBRB2B8IAK051NDOCD/Winter_2017_PDF.jpg Blog - Vine Mealybug Management Figure 1. A Thompson seedless cluster heavily invested with vine mealybug. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565293718601-ZRR10FBUPU3BARYURGKI/image-asset.jpeg Blog - Vine Mealybug Management Figure 2. Pheromone trap for vine mealybug. (Photo by UC IPM.) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565293747998-D5L7IEEOB0E1Z6PWW1AK/Winter_2017_PDF+3.jpg Blog - Vine Mealybug Management Figure 3. Dark and wet appearance of a grapevine trunk infected with vine mealybug. https://www.sjvtandv.com/blog/dry-on-vine-raisin-grape-canopy-management-for-open-gable-trellises monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565293365196-8YGTHLAMVHF5H4Q0RQ4O/1.jpg Blog - Dry-on-Vine Raisin Grape Canopy Management for Open Gable Trellises Figure 1. An overhead arbor trellis system with canopies divided into alternating fruiting and renewal sections. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565293408745-Y9FAGD8UP7BQXS00FT5F/canopy+example.jpg Blog - Dry-on-Vine Raisin Grape Canopy Management for Open Gable Trellises https://www.sjvtandv.com/blog/getting-the-most-out-of-a-golden-hills-pistachio-harvest monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1566402273377-PC0SE6CX0V78QS37ZPIG/Golden+Hills.+C+Kallsen.jpg Blog - Getting the Most Out of a Golden Hills Pistachio Harvest Figure 1. Golden Hills Nut Cluster – these nuts are ready for harvest. The hull may feel somewhat firm on some, but most will separate cleanly from the shell in the huller. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565293041717-94LLIPJK1AC4454QE1S7/2.jpg Blog - Getting the Most Out of a Golden Hills Pistachio Harvest Figure 2. Do not begin a Golden Hills harvest too early. The nut maturation window is short and waiting a few days will allow most of the nuts to be harvested in a single shake. https://www.sjvtandv.com/blog/2015-san-joaquin-valley-bud-fruitfulness-survey monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1562867883158-OMVB0DGSQ20M5JZEZ9UA/Figure+1.jpg Blog - 2015 San Joaquin Valley Bud Fruitfulness Survey F ig. 1. Primary and secondary bud anatomy (image sourced from Dr. Luis Sanchez) https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1562868005051-KOSXAFEGT8LI4HZ6OR4J/Fig+2.png Blog - 2015 San Joaquin Valley Bud Fruitfulness Survey Fig. 2. Selma Pete 2015 buds on nodes from 0 to 5 were not as fruitful as buds on nodes 6 t o 13 in Parlier, CA https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1562868073098-A0LTDP2RHXN53KY63ZHH/Figure+3.jpg Blog - 2015 San Joaquin Valley Bud Fruitfulness Survey Fig. 3. Bud wood collected from the field https://www.sjvtandv.com/blog/using-bud-dissection-to-guide-winter-pruning-decisions monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1562870299278-W5P0R08FZ48GV60UZKVH/fig+1.jpg Blog - Using Bud Dissection to Guide Winter Pruning Decisions Figure 1. Cross section of a grape bud. The red arrow indicates the cluster primordia in the primary bud. This cluster primordia will develop into a grape cluster the next season. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1562870348887-LCHWSJZACDJDKB4IS179/Fig+2.png Blog - Using Bud Dissection to Guide Winter Pruning Decisions Figure 2. Comparison between the number of cluster primorida, representing potential fruitfulness, and the number of clusters, representing actual fruitfulness, in 2015, at different node positions in Selma Pete, Parlier, CA. https://www.sjvtandv.com/blog/managing-irrigation-to-maximize-grape-production monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1562875493723-FIBT5HNC6C6FYEAWFWD1/figure+1.JPG Blog - Managing Irrigation to Maximize Grape Production Figure 1. The recommended location of tensiometers or neutron probe access tubes to measure soil water content or matric potential (image courtesy of Dr. Larry Williams). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1562875575175-FHO9HXFY5E20NIS7SWQ2/figure+2.JPG Blog - Managing Irrigation to Maximize Grape Production Table 1. Vine water use (drip irrigation schedule) for a large canopy or a crossarm trellis*. *Raisin vineyard canopy covers 75% or more of the land surface during summer months. (Raisin Production Manual, UC ANR Publication 3393) https://www.sjvtandv.com/blog/advances-in-mitigation-of-alternate-bearing-of-olive-vegetative-growth-response-to-plant-growth-regulators monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557167491325-7E5Q0NWZ3U5SR558HWNU/Pic+Bubbles.png Blog - Advances in mitigation of alternate bearing of olive: vegetative growth response to plant growth regulators Elizabeth Fichtner, UCCE Farm Advisor, Tulare County https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557167540777-WEO2VXKLXVDWBUTP5TZJ/Pic+Bubbles1.png Blog - Advances in mitigation of alternate bearing of olive: vegetative growth response to plant growth regulators Carol Lovatt, Professor of Plant Physiology, Botany and Plant Sciences, UC-Riverside https://www.sjvtandv.com/blog/does-your-orchard-have-ganoderma-root-and-butt-rot monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559682760722-9WTJU0Y7B9K9WPYHRG7H/image-asset.png Blog - Does your orchard have Ganoderma root and butt rot? Figure 1. Windfall caused by Ganoderma root and butt rot. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559682793840-G2K1JZI2OFYV6X67RLZ7/2.png Blog - Does your orchard have Ganoderma root and butt rot? Figure 2. Ganoderma conks. Notice rusty red colored spores around conk in bottom right picture. https://www.sjvtandv.com/blog/pistachio-nut-phenology-studies-in-california-address-crop-development-as-a-function-of-heat-unit-accumulationnbsp monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557955652301-M3IUR6LF208Y9V42YHMY/fitchner+bubble.png Blog - Pistachio nut phenology studies in California address crop development as a function of heat unit accumulation&nbsp; Elizabeth Fichtner, Farm Advisor, Tulare and Kings Coounty https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557956804422-6PW2B5NPXYBDGIWTYQ48/Louise+Ferguson.png Blog - Pistachio nut phenology studies in California address crop development as a function of heat unit accumulation&nbsp; Louise Ferguson, CE Specialist, UC Davis https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557957220812-YPA4IS5ZVZ1V5XPABYLF/Narges+Moosavi+Mahvelati.png Blog - Pistachio nut phenology studies in California address crop development as a function of heat unit accumulation&nbsp; Narges Moosavi Mahvelati, Jr. Specialist, UC Davis and UC ANR https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557957467909-KNKZU0NH22WL9FPQ9X7B/Lu+Zhang.png Blog - Pistachio nut phenology studies in California address crop development as a function of heat unit accumulation&nbsp; Lu Zhang, Post-doctoral researcher, UC Davis https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557955251072-RLPJCD7W99XHJEC192O9/slide+1.JPG Blog - Pistachio nut phenology studies in California address crop development as a function of heat unit accumulation&nbsp; https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557955606345-7CJGD13SPTN3MDP80BY9/slide+2.JPG Blog - Pistachio nut phenology studies in California address crop development as a function of heat unit accumulation&nbsp; https://www.sjvtandv.com/blog/declining-walnuts-whats-the-deal monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557178163735-R0ARJHQV7RUAYHDGP3XA/Pic+Bubbles.png Blog - Declining walnuts, what’s the deal? Kari Arnold, Orchard Systems Advisor, Stanislaus County https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557178374326-8F3LJRC8KV4BVO99QSIQ/1a.jpg Blog - Declining walnuts, what’s the deal? Please note the metallic blue hue present on this gall. The color is likely related to a lack of oxygen brought on by inadequate irrigation. Delayed irrigation may benefit this orchard, promoting a healthier root system which may in turn be able to compensate for some root galls. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1563396044615-6INZKTIL5YGFNCZ3HUE0/1b.jpg Blog - Declining walnuts, what’s the deal? Rotting tissue under the bark, possibly related to inadequate irrigation. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557178905308-T594QEPCXVHJ8AG2U7MQ/3.jpg Blog - Declining walnuts, what’s the deal? Choose terminal leaflets that are in the lower canopy, nearest the trunk of the tree and bag for SWP measurement. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557178680413-H2MJBV5ZXV34EHQDW2JS/2.jpg Blog - Declining walnuts, what’s the deal? Pressure chamber for measuring stem water potential (SWP). https://www.sjvtandv.com/blog/walnut-orchard-planting monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557177515307-8T8ASOATHI8ZHGQ0IXF3/Pic+Bubbles.png Blog - Walnut Orchard Planting Kari Arnold, Orchard Systems Advisor, Stanislaus County https://www.sjvtandv.com/blog/bmuum0puuv1oytn3qkgkuag9i9wnrr monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1556904651571-4O49EPFJBXIWLS2Y8DGY/b.jpg Blog - Olive Quick Decline in Italy is associated with unique strain of Xylella fastidiosa Symptoms of olive quick decline syndrome in Italy include canopy dieback: Leaf Scorch https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1556904715359-7GTZN0VM63IQ16OAX7RV/c.jpg Blog - Olive Quick Decline in Italy is associated with unique strain of Xylella fastidiosa Symptoms of olive quick decline syndrome in Italy include canopy dieback: Branch Dieback https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1556904591762-P8NTTROVC7TVV9FSOWPE/A.jpg Blog - Olive Quick Decline in Italy is associated with unique strain of Xylella fastidiosa Symptoms of olive quick decline syndrome in Italy include canopy dieback: Canopy Dieback https://www.sjvtandv.com/blog/alternaria-late-blight-of-pistachios monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557181591128-SF6GALGSJ3QGW3XLOVNM/Pheobe.png Blog - Alternaria Late Blight of Pistachios Phoebe Gordon, Orchard Crops Farm Advisor, Merced County https://www.sjvtandv.com/blog/kgkt2owv6lxnrb1o4i15lmfipj9y4w monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557181140791-39YSU5P6S895OJWCPQK0/Pheobe.png Blog - Potassium in Nut Crops: Plant Uses and Field Application Phoebe Gordon, Orchard Crops Farm Advisor, Merced County https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1557181202092-A1HA2CW28XCH3Y1ZK5DX/Franz.png Blog - Potassium in Nut Crops: Plant Uses and Field Application Franz J.A. Niederholzer, Orchard Systems Farm Advisor, Colusa County https://www.sjvtandv.com/blog/strongwhat-values-should-olive-growers-use-for-estimating-crop-nitrogen-removal-at-harveststrong monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1556918227201-SPC99B31IHN0MQJ54KRH/Pic+Bubbles.png Blog - What values should olive growers use for estimating crop nitrogen removal at harvest? Elizabeth J. Fichtner, Farm Advisor, UCCE Tulare County https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1556918994232-RQO9TRRB1OX03U73M67F/graph.png Blog - What values should olive growers use for estimating crop nitrogen removal at harvest? Figure 1. Pie charts illustrate estimates of distribution of nitrogen in the aboveground portion of the olive tree and the fruit. Data was gathered from Rodrigues, et al., based on studies conducted in a rainfed orchard of Olea europaea cv. Cobrancosa in northeast Portugal. https://www.sjvtandv.com/blog/i9ewc0wj12cbksr1uj4875uokc82ck monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/nnbspbudgeting-following-the-4-rsnbsp monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559232497499-EP5PEVY2XJ5WL2M5BOOK/k+pope1.jpg Blog - N&nbsp;Budgeting Following the 4 R’s&nbsp; Katherine Pope, UCCE Orchard Advisor Yolo, Solano, & Sacramento Cos. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559232598521-Y130LC0K1UO9BUWWUOB5/bruce+h+bubble.jpg Blog - N&nbsp;Budgeting Following the 4 R’s&nbsp; Bruce Houdesheldt, Sacramento Valley Water Quality Coalition https://www.sjvtandv.com/blog/symptoms-of-foliar-chlorosis-on-tulare-county-walnuts-indicative-of-over-irrigation monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559250716467-XGIW75OYISI7LX2M17VC/fitchner+bubble.png Blog - Symptoms of foliar chlorosis on Tulare County walnuts indicative of over-irrigation Elizabeth Fichtner, UCCE Farm Advisor, Tulare County https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559251181894-S9F5NZZZEPESQ2CVNXNY/lampien+bubble.jpg Blog - Symptoms of foliar chlorosis on Tulare County walnuts indicative of over-irrigation Bruce Lampinen, UC Extension Specialist, UC Davis https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559251600086-WR6R22Z1XQUE1M2QWM5D/figure.JPG Blog - Symptoms of foliar chlorosis on Tulare County walnuts indicative of over-irrigation https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559252251256-78OIS8RDVST63GV0G7S5/figure+2.jpg Blog - Symptoms of foliar chlorosis on Tulare County walnuts indicative of over-irrigation Figure 2. Walnuts maintained wetter than baseline develop blackened nuts. Photo: J. Grant. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559252298409-F0VOESC2MLAGHZVS6TK7/figure+3.jpg Blog - Symptoms of foliar chlorosis on Tulare County walnuts indicative of over-irrigation Figure 3. Some growers may grow an annual crop between the rows of new orchards. Meeting the irrigation demands of the annual crop without adversely affecting the trees poses a challenge. Photo: E. Fichtner https://www.sjvtandv.com/blog/planning-for-your-summer-tree-nut-weed-control monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559253136522-E2U4MTVK346SCLG3PWHU/k+hembree.jpg Blog - Planning for your summer tree nut weed control Kurt Hembree, UCCE Farm Advisor, Fresno County https://www.sjvtandv.com/blog/aubx79kbbypybzdtk1yj86lvkv2k4e monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559672820930-809W41A5O5X20YJN479R/image-asset.jpeg Blog - Are you choosing the right spray for the right weeds? https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559672803273-IHNZBG7B62RO4LI2DYRM/hairy+fleabane.JPG Blog - Are you choosing the right spray for the right weeds? https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559672768716-Z320KSAM1WOHDGL3SKU7/image-asset.jpeg Blog - Are you choosing the right spray for the right weeds? https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559672733832-6AI77EBSDZLMLJ832QWW/malva+cheeseweed.JPG Blog - Are you choosing the right spray for the right weeds? https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559672855809-ULWDGFVFOWO0OIUY0CIE/horseweed.JPG Blog - Are you choosing the right spray for the right weeds? https://www.sjvtandv.com/blog/walnut-husk-flynbsp-an-emerging-pest-in-the-southern-san-joaquin-valley monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559666683857-RQQ47DWJYWHOKX85AIN0/fig+1.JPG Blog - Walnut Husk Fly:&nbsp; an emerging pest in the southern San Joaquin Valley Fig 1. White eggs will emerge from the adult female walnut husk fly after pressing on the abdomen with a blunt tool. Adult female https://www.sjvtandv.com/blog/crown-gall-on-walnutsnbsp-assessing-origin-of-infection-disease-management-and-prevention monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/coyote-damage-in-orchards monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/considering-new-orchard-replacement-options-whole-orchard-recycling-and-anaerobic-soil-disinfestation monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559681585517-RQALUW5Q8C4EYY78RU73/1.png Blog - Considering New Orchard Replacement Options: Whole Orchard Recycling and Anaerobic Soil Disinfestation Figure 1. Responses of trees to preplant treatments in one of the initial ASD trials at the UC Kearney Research and Extension Center. Foreground, stunted trees exhibiting PRD in a non-fumigated control plot; left and right backgrounds, vigorously growing trees in preplant fumigated and preplant ASD plots, respectively. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559681633063-F1X9YCVCAOE9BFKM919J/2.jpg Blog - Considering New Orchard Replacement Options: Whole Orchard Recycling and Anaerobic Soil Disinfestation Figure 2. Dr. Greg Browne inspecting wood chips spread on the soil surface at approximately the same rate the trees were removed (65 tons per acre). https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559681739462-H0PK3PQ2NHQXM7UT9YTL/3.jpg Blog - Considering New Orchard Replacement Options: Whole Orchard Recycling and Anaerobic Soil Disinfestation Figure 3. Anaerobic soil disinfestation substrate (ground almond hull and shell) spread on soil surface as a treatment of a total of four treatments applied to wood chip and no-chip plots. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559681871882-R3TKXFN28YUUMUXAWZ3D/5.JPG Blog - Considering New Orchard Replacement Options: Whole Orchard Recycling and Anaerobic Soil Disinfestation Figure 4. Incorporation of wood chips and ASD substrate (ground almond hull and shell) into the soil using a Northwest Tiller rototiller. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559681929163-L70BLC84U9FRJSR2PSER/image-asset.jpeg Blog - Considering New Orchard Replacement Options: Whole Orchard Recycling and Anaerobic Soil Disinfestation Figure 5. Anaerobic soil disinfestation plot after installing drip lines and placing TIF tarp. https://www.sjvtandv.com/blog/the-dynamic-state-of-spurs-in-almond monthly 0.5 2024-10-24 https://www.sjvtandv.com/blog/distribution-of-chlorosis-in-almond-orchards-may-help-assess-potential-irrigation-related-issue monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559683471088-QC046O25982OER0XOTNA/1.JPG Blog - Distribution of chlorosis in almond orchards may help assess potential irrigation-related issue https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559683508140-04UUHZF41MNLWERHWBXI/image-asset.png Blog - Distribution of chlorosis in almond orchards may help assess potential irrigation-related issue https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559683617138-NBMJXO7YM43T42IPUY24/3.JPG Blog - Distribution of chlorosis in almond orchards may help assess potential irrigation-related issue https://www.sjvtandv.com/blog/can-mechanically-applied-pollen-either-supplement-bees-or-ensure-an-almond-crop-in-the-event-of-bee-inefficacy-or-unavailability monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559777135458-NFUEQYDZGSQVBSBOQ6IA/abc.JPG Blog - Can mechanically-applied pollen either supplement bees, or ensure an almond crop in the event of bee inefficacy or unavailability? https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1559834895108-5TJUIGBOEXK9FH8BOCBD/graph.JPG Blog - Can mechanically-applied pollen either supplement bees, or ensure an almond crop in the event of bee inefficacy or unavailability? Figure2. The 2015 almond pollination study addressed the potential benefit of mechanical pollination in the event of a bee failure. Letters above bars designate statistical differences between treatments (P≤0.05). https://www.sjvtandv.com/blog/2016/9/12/lorem-ipsum-dolor-sit-amet-5 monthly 0.5 2024-10-24 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1553275764514-DSVKUFNTURXO7WW4X9ML/Depositional+crust+from+runoff.JPG Blog - Assessing Infiltration in Orchards Depositional crust. The source of particles is from irrigation water runoff. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1553276354827-Q11VUU0AIE3137IGH5O3/IMG_0053.jpg Blog - Assessing Infiltration in Orchards - Phoebe Gordon Madera and Merced Counties https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1553277504815-JDSQ9I5ZZB9OBMKWE7F3/SAR+equation.png Blog - Assessing Infiltration in Orchards Equation 2: Equation to calculate the sodium adsorption ratio. Sodium, calcium, and magnesium are all in meq/L. https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1553276975962-JBVME0IO99VAF6TRBZXP/Infiltration+chart.png Blog - Assessing Infiltration in Orchards Table 1: Likelihood of infiltration problems from irrigation water quality. Source: Adapted from Ayers and Westcot (1985). https://www.sjvtandv.com/blog/category/Soils monthly 0.5 https://www.sjvtandv.com/blog/category/Irrigation monthly 0.5 https://www.sjvtandv.com/blog/category/Walnuts monthly 0.5 https://www.sjvtandv.com/blog/category/Nuts monthly 0.5 https://www.sjvtandv.com/blog/category/Almonds monthly 0.5 https://www.sjvtandv.com/blog/category/Horticulture monthly 0.5 https://www.sjvtandv.com/blog/category/Vineyards monthly 0.5 https://www.sjvtandv.com/blog/category/Pests monthly 0.5 https://www.sjvtandv.com/blog/category/Diseases monthly 0.5 https://www.sjvtandv.com/blog/tag/Water monthly 0.5 https://www.sjvtandv.com/blog/tag/Nuts monthly 0.5 https://www.sjvtandv.com/blog/tag/Vines monthly 0.5 https://www.sjvtandv.com/blog/tag/IPM monthly 0.5 https://www.sjvtandv.com/blog/tag/Rootstock monthly 0.5 https://www.sjvtandv.com/blog/tag/Fruits monthly 0.5 https://www.sjvtandv.com/blog/tag/Pistachio monthly 0.5 https://www.sjvtandv.com/blog/tag/horticulture 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https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1573773357937-CAAP9JX8L72PDSOGM7FO/mae.jpg https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1573773463547-00L8QO0WZTFDBZPKRQL3/Yaghmour.jpg https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1573773529336-9IHW9O4TXW06KUWHN20X/fichtner.jpg https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1588270015793-NVMA10FZW3NX5P996Z87/George+photo+in+the+vineyard.JPG https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1590519424098-LG55KCD9PEX1JBV8BLGB/KTLund+Headshot.jpg https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/4ff38024-4fb2-4a27-a50e-aec584cbdeaa/rosenberg.jpg https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/4778adbe-f8ca-4d7b-b29d-4eba551889ea/Moneim+Mohamed.jpg https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/09405265-833b-4c07-92a5-d95b32e14b6b/Joy+Hollingsworth.jpg https://www.sjvtandv.com/other-resources daily 0.75 2021-01-11 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1561650333923-Q439VQYH5V4UW229M9YB/fruit+and+nut.jpg Other Resources - Fruit and nut research and information center Find specific crop information, weather models, baseline stem water potential values, and more at http://fruitsandnuts.ucdavis.edu/ https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1579300342042-AX74I9TZB6M91Q47EF61/IPM.jpg Other Resources - UC IPM Your best resource to find detailed information on managing pests and diseases in California orchards, as well as other major crops grown in the state. Find out more at: http://ipm.ucanr.edu/ UC IPM also has instructional videos on YouTube. You can find them here: https://www.youtube.com/playlist?list=PLo3rG4iqv4gFEwu3XVuNDs_SmqvQstcnN https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1561575613023-388XTQZEFS692BDZERWO/WS+logo.jpg Other Resources - Weed research and information center Find out specific information about weeds, herbicide efficacy, herbicide phytotoxicity symptoms, and more at https://wric.ucdavis.edu/ https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1610399198301-PLZ3GUGZR1U4XF2M21QE/UCDavisARE.png Other Resources - Agricultural and resource economics The UC Davis ARE center does economic research on agriculture, and publishes cost and return studies on important crops in the state, including almonds, pistachios, walnuts, figs, and other tree crops. These studies can be helpful for developing a business plan. You can learn more about the center here: https://are.ucdavis.edu/ And cost and return studies can be found here: https://coststudies.ucdavis.edu/en/ https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1579300008904-M07R08HOUPARYH2AGR1P/img_586bead86d3f7-320x228.png Other Resources - SaCramento Valley Orchard Source Visit for information and research updates. While this is Sacramento Valley focused, most concepts are broadly applicable to all areas of the Central Valley. Find out more at: http://www.sacvalleyorchards.com/ https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1561561171427-Z4UE2HR14L3IZUGDM4UQ/WOR.jpg Other Resources - Whole orchard recycling Interested in recycling your old orchard, but have questions or concerns or just want to see the latest research? Find out more at https://orchardrecycling.ucdavis.edu/ https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1561650333923-Q439VQYH5V4UW229M9YB/fruit+and+nut.jpg Other Resources - Fruit and nut research and information center Find specific crop information, weather models, baseline stem water potential values, and more at http://fruitsandnuts.ucdavis.edu/ https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1579300342042-AX74I9TZB6M91Q47EF61/IPM.jpg Other Resources - UC IPM Your best resource to find detailed information on managing pests and diseases in California orchards, as well as other major crops grown in the state. Find out more at: http://ipm.ucanr.edu/ UC IPM also has instructional videos on YouTube. You can find them here: https://www.youtube.com/playlist?list=PLo3rG4iqv4gFEwu3XVuNDs_SmqvQstcnN https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1561575613023-388XTQZEFS692BDZERWO/WS+logo.jpg Other Resources - Weed research and information center Find out specific information about weeds, herbicide efficacy, herbicide phytotoxicity symptoms, and more at https://wric.ucdavis.edu/ https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1610399198301-PLZ3GUGZR1U4XF2M21QE/UCDavisARE.png Other Resources - Agricultural and resource economics The UC Davis ARE center does economic research on agriculture, and publishes cost and return studies on important crops in the state, including almonds, pistachios, walnuts, figs, and other tree crops. These studies can be helpful for developing a business plan. You can learn more about the center here: https://are.ucdavis.edu/ And cost and return studies can be found here: https://coststudies.ucdavis.edu/en/ https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1579300008904-M07R08HOUPARYH2AGR1P/img_586bead86d3f7-320x228.png Other Resources - SaCramento Valley Orchard Source Visit for information and research updates. While this is Sacramento Valley focused, most concepts are broadly applicable to all areas of the Central Valley. Find out more at: http://www.sacvalleyorchards.com/ https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1561561171427-Z4UE2HR14L3IZUGDM4UQ/WOR.jpg Other Resources - Whole orchard recycling Interested in recycling your old orchard, but have questions or concerns or just want to see the latest research? Find out more at https://orchardrecycling.ucdavis.edu/ https://www.sjvtandv.com/tree-nutrition daily 0.75 2024-05-03 https://www.sjvtandv.com/about-ucanr daily 0.75 2019-08-14 https://images.squarespace-cdn.com/content/v1/5c950696b2cf79c6477a78a9/1565817127256-GXCGECO4YAPEJU03ON7K/UCCE.jpg About UCANR - About University of california cooperative extension: Cooperative Extension is a program in the University of California, Division of Agriculture and Natural Resources that extends science based information to the public, allowing all Californians to benefit from cutting edge university research. 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