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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

Grapes & Vineyards

Browse all grape and vineyard extension topical resources using the Grape & Vineyards Topics section of the right menu. Select topics are highlighted below.


Washington is the national leader in juice grape production, and second in wine grape production.

Our goal is to provide quality information and tools for the viticulture industry in Washington State and the surrounding region.  Growing grapes can be challenging in any environment, but Washington State is the perfect climate for wine.

Vineyard Establishment

Learn and gather information on what it takes to plan for, and establish, a new vineyard site.  Find information on climate, soils, site preparation, and how to properly select plants.

Learn more about:

Vineyard Management

Managing a vineyard can be as challenging as establishing one.  Gather valuable information on trellising and training systems, general grape growing practices, and vineyard floor management.

Learn more about vineyard management »

Vineyard Irrigation

The majority of grape production in Washington is located in the arid “East” where irrigation is an essential part of agriculture. This page has more information on general practices for irrigated agriculture.

Learn more about vineyard irrigation »

Grape Health (Pests, Diseases, Disorders, Nutrition)

Maintaining plant health is vital in the quality production of grapes.

Learn more about disease and insect identification, physiological disorders, and general plant nutrition:

Economics of Grape Production

Viticulture is the business of producing grapes.  Having a solid understanding of the economics and costs of producing grapes is vital for the sustainability of your business, and of the industry.

Learn more about:

Juice Grape Sustainability

The WA Juice Grape Sustainability Report Card is designed to aid juice grape producers in documenting their practices, and how those practices influence the overall sustainability (economically, environmentally, and socially) of their farms. The Report Card also contains information and resources to help growers develop action plans to improve their sustainability in areas where they may fall short.
Learn more about juice grape sustainability »

Clean Plant Center – Northwest Grapes

The Clean Plant Center Northwest-Grapes (formerly the Northwest Grape Foundation Service) is a starting point for growers to receive planting stock that is state-certified as to being tested free of targeted viruses.
Learn more about the clean plant center »

General Resources

Many other resources are available to winemakers, growers, and those interested in Washington Wine and Grapes.  Check out our:

Nutrition and Soil Fertility

Weather Information

Winter Cold Damage

Pests & pest control

WSU Diagnostic Clinic (Plant Pathology)

WSU Grape Pest Management Guide

Pest Management Strategic Plan – Grapes (.pdf)

Field Guides for Integrated Pest Management in the Pacific Northwest

Pesticide Application Technology

Pesticide Information and Licenses

Vineyard Vertebrates

Diseases & Disease Control

General Grape Diseases

Virus Diseases (Virology)

Herbicide and Physiological Disorders

Weed Management


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