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Coronavirus COVID-19

The V&E Program is following CDC, state, and university recommendations to practice social distancing in order to slow the spread of the novel COVID-19 virus. We have temporarily modified our operations to include teleworking options for our faculty, staff and graduate students, but remain available to serve you during regular business hours though email, phone and videoconference. Visit WSU’s source of updates and information about COVID-19 at

Grape Diseases

Foliar and Fruit Diseases

Wood and Root Diseases

Virus Diseases

Please also see our Grapevine Virology webpage.

Disease Management and Models

Disease development is closely linked to weather. AgWeatherNet has models for important disease management decisions.

Viticulture: Self-Directed Courses

Take individual programs from the Viticulture Certificate Course, and custom-build your knowledge base.  Courses on Fungal and Viral Diseases, Pest Management and Biocontrol, Weed Management, and Nematodes are all available.

Browse Self-Directed Courses

Fungicide Resistance Action Committee (FRAC)

FRAC is an international working group designed to help mitigate the development of fungicide resistance in many of the critical fungal pathogens in modern plant production.