WSU Viticulture and Enology

Research and Extension

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

Quick Links

WSU Grape Pest Management Guide

Guide to control of pests on commercial grapes. Updated annually – WSU #EB0762. Click here to order a hard copy. Click here to order a downloadable PDF.

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