Quad-County Walnut Institute
Free to attend with coffee, snacks, and lunch provided by California Walnut Board and Commission

DPR and CCA continuing education requested

Date and Time: March 6th, 2026 from 7:30 AM to 1:30 PM

Location: Robert J Cabral Agricultural Center, 2101 E Earhart Ave, Stockton, CA 95206

Registration requested to help with planning lunch: https://link.ucanr.edu/2026qcwi

For more information contact Brent Holtz (baholtz@ucanr.edu), Kamyar Aram (kamaram@ucanr.edu), Jhalendra Rijal (jrijal@ucanr.edu), Moneim Mohamed (amohamed@ucanr.edu), Cameron Zuber (cazuber@ucanr.edu)

Thank you to the California Walnut Board and Commission for sponsoring lunch and participating at this event

Agenda:

7:30        Coffee, donuts, and sign up for continuing education

8:05        Welcome

8:15        Local Walnut Pest Updates: Flatheaded Borer, Mites, Carpophilus Beetle (Jhalendra Rijal, Ph.D., Area IPM Advisor, UCCE Stanislaus)

8:45        Phytophthora Management in Walnuts (Jaime Ott, Ph.D., Orchard System Advisor, UCCE Tehama)

9:15       Ethephon Use Research Update in Walnuts (Clarissa Reyes, Orchard System Advisor, UCCE Sutter-Yuba)

9:45        Break

10:00     Addressing Mold Issues in Walnuts (Themis Michailides, Ph.D., Professor of Plant Pathology, UC Davis)

10:30     Updates on Walnut Variety and Rootstocks (Patrick J. Brown, Ph.D., Professor and Nut Crops Breeder, UC Davis)

11:00     Walnut Husk Fly & Scale Insects Management in Walnuts (Robert Van Steenwyk, Ph.D., Emeritus Professor of Entomology, UC Berkeley)

11:30     State of the Walnut Industry (Robert Verloop, CEO of California Walnut Research Board & Commission)

12:00     Lunch

1:30        End