Photo: Lynn Ketchum (Cropped from original)

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Winemaking basics: Can you trust your pH meter?

This article provides practical advice for the use of a pH meter in the winery, including how to ensure accurate readings and maintenance of the pH probe.

James Osborne | Mar 2021 | Article

Extension’s experimental cider orchard to boost budding Oregon industry

The orchard, established at Oregon State University’s North Willamette Research and Extension Center – 23 miles south of downtown Portland – is the brainchild of Nik Wiman, OSU Extension orchard crops specialist.

Kym Pokorny | Jan 12, 2021 | News story

How to Scout for Grape Phylloxera in Vineyards

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

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

How to Assess whether Grapes and Wines are affected by Wildfire Smoke Exposure

This article describes how to evaluate grape berries and wine for smoke aromas imparted by wildfire smoke exposure.

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

Smoke Exposed Grapes: Microfermentation Protocol for Winemakers & Growers

This protocol provides instructions for a small fermentation to evaluate smoke impacts in grapes and wine.

Elizabeth Tomasino, Anita Oberholster, Tom Collins | Sep 2020 | Fact Sheet

Manejo de mildiu polvoriento (cenicilla) en lúpulo: Las mejores prácticas de cultivo

El mildiu polvoriento (cenicilla) es una de las enfermedades más importantes del lúpulo. El manejo exitoso requiere un conjunto integrado de prácticas, desde prácticas de cultivo, biológicas y químicas hasta la plantación de ...

Luisa Santamaria | Nov 2019 | OSU Extension Catalog

Dealing with damaged fruit in the winery

This article describes how to process fruit that is damaged in the vineyard due to cracking and infestation by fruit flies.

James Osborne | Oct 2019 | Article

Standards for Bird Control in Vineyards

Birds can feed on ripening grape berries near harvest. Learn how to protect your grapes in a safe and legal manner. Provided by the Oregon Wine Growers Association and Willamette Valley Wineries.

Sep 2019 | Fact Sheet

Impact of Smoke Exposure on Wine

Recent wildfires have exposed grapes in some areas to high levels of smoke that can affect wine quality. While there’s still a lot we don’t know, certain practices can help. Grape growers can identify affected grape lots ...

Sep 2019 | OSU Extension Catalog