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Grape Day Handouts & Recordings

Annual Sonoma County Grape Day handouts and recordings dating back to 2002. On this page you will find presentations sorted by:

Threecornered Alfalfa Hopper
Threecornered Alfalfa Hopper

Diseases

Grapevine Disorders

Insect and Other Pests

General

Recordings

2020

Grape downy mildew: Identification, symptoms and control
Rhonda Smith, UC Cooperative Extension Viticulture Advisor, Sonoma County
Duration: 00:29:02

Correcting In-Season Potassium Deficiencies in Grapevine
Dr. Kaan Kurtural, Extension Viticulture Specialist, UC Davis and UC Oakville Experiment Station
Duration: 00:24:53

Grapevine red blotch virus vector research
Dr. Cindy Kron, UC Cooperative Extension North Coast IPM Advisor
Duration: 00:38:45

Source-sink relationships in grapevine: Storage reserves and fruiting
Dr. Kaan Kurtural, Extension Viticulture Specialist, UC Davis and UC Oakville Experiment Station
Duration: 00:39:04

Grapevine trunk diseases in California: Research updates
Dr. Akif Eskalen, UC Cooperative Extension Specialist; UC Davis Department of Plant Pathology
Duration: 00:56:53

2016

Mealybug research - from pesticide movement in the vine to their possible role as vectors of plant viruses 
Dr. Kent Daane, UC Berkeley 
Duration: 00:53:28