Wine Grape Resources for Umatilla County

Umatilla County is home to a growing wine grape acreage and the Oregon half of the Walla Walla Valley American Viticultural Area (AVA), known for its production of high quality wine grapes. The growing conditions of this Eastern Oregon region are hotter, colder, and drier than other wine grape growing regions in Oregon, posing unique challenges and opportunities.

2024 Pest Management Guide for Wine Grapes in Oregon

Learn the most effective techniques for controlling insects, weeds and disease on wine grapes in Oregon. Study strategies for controlling powdery mildew, botrytis bunch rot and spider mites.

Patricia A. Skinkis, Jay W. Pscheidt, Achala KC, Marcelo Moretti, Vaughn Walton, Cody Copp | Feb 2024 | Extension Catalog publication

How to assess whether grapes and wines are affected by wildfire smoke

Exposure of wine grapes to wildfire smoke can affect the sensory qualities of wine. Learn how to use laboratory analysis and micro fermentations to assess the impact.

James Osborne, Patricia A. Skinkis, Elizabeth Tomasino | Sep 2020 | Article

Microfermentation can help determine smoke's effect on wine grapes

There is no formula for determining whether smoke affects the flavor of wine grapes. The best way to find out is to combine lab analysis with the tasting of a small batch of wine made from grapes exposed to smoke.

Elizabeth Tomasino, Anita Oberholster, Tom Collins | Aug 2020 | Article

Wine Industry Wildfire Smoke Toolkit (in English)

This website hosted by the Oregon Wine Board, provides important resources, industry round table discussions, and frequently asked questions regarding smoke effects on grapes and wine.

Sep 2020 | Online resource

Protecting Grapevines from Winter Injury

Winegrape production in the Pacific Northwest has expanded into areas where low winter temperatures periodically cause cane damage or death. Canes can be protected from freeze damage by burying them or covering them...

Clive Kaiser, Patricia A. Skinkis, Mercy Olmstead | Mar 2008 | Extension Catalog publication

How to Scout for Grape Phylloxera in Vineyards (in English)

This video provides the basic steps in searching for phylloxera in an infested vineyard.

Michelle Moyer, Gwen Hoheisel, TJ Mullinax, Patricia A. Skinkis | Nov 2020 | Video

Oregon Wine Research Institute (in English)

Visit this website for information about the research activities of the faculty team at the Oregon Wine Research Institute at Oregon State University. Information is intended for the commercial wine grape industry. Content includes research reports, newsletter archives, webinar recordings, upcoming events, and other research-based information from viticulture, enology, and wine business faculty.

Patricia A. Skinkis, James Osborne, Denise L. Dewey | Jul 2018 | Online resource

Prevención y manejo del virus del enrollamiento de la hoja y de los piojos harinosos en viñedos del estado de Oregon

Este documento sugiere prácticas que se cree reducen la propagación de enfermedades y virus.

Vaughn Walton, Amy J. Dreves, Patricia A. Skinkis, Clive Kaiser, Marcus A. Buchanan, Rick Hilton, Robert Martin, Steve Castagnoli, Steve Renquist | Jan 2018 | Extension Catalog publication Peer reviewed (Orange level)

Nonlethal Bird Deterrent Strategies: Methods for reducing fruit crop losses in Oregon

Bird predation is a significant threat to marketable yields in fruit crops. Loss estimates are about 10% to 20% in blueberries, 5% to 30% in cherries, and 5% to 10% in grapes. However, some vineyard sites ...

Scott Lukas, Logan Clark, Amanda Davis, Dana Sanchez, Linda Brewer | Sep 2020 | Extension Catalog publication

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Mar 2022

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Wine Grape Resources for Umatilla County