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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

Herbicide, Physiological, and Other Disorders

Herbicide Drift and Damage

Herbicide drift and resulting damage can cause serious problems in vineyards. However, herbicide damage is often confused with plant diseases, especially those caused by viruses. Below are links to resources that can help you identify potential herbicide damage, and how to reduce drift:

Washington State Rules and Regulations – Herbicide Drift

Physiological and Other Disorders

Water Stress