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How to deal with a vineyard powdery mildew outbreak

A powdery mildew infection on grape vines is among the last things a grape grower wants to see. An infection can destroy fruit and wine quality. But if powdery mildew shows up, there is a rescue plan.

Jay W. Pscheidt | Mar 2024 | Article Peer reviewed (Gray level)

Winery Cost of Production Calculator

An online resource for current and prospective winery owners in WA, OR, and ID. This may be used to help calculate initial investment and annual operating costs of small wineries ranging from 500 to 10,000 cases of annual production.

Jul 2019 | Online resource

Simultaneous malolactic fermentation: Is it the right option for your wine?

Malolactic fermentation is a vital step in the production of red wines and some white wines. The process brings balance to wines by reducing acidity. Here's a guide for winemakers on the best time to start the process.

James Osborne | Mar 2019 | Article

Jay Pscheidt, Plant Pathologist, shows SMART sprayers for disease management in vineyards

Jay Pscheidt is a plant pathologist and Extension researcher who works with the Oregon Wine Research Institute, based at Oregon State University. His research focuses on a “smart” sprayer that is run by a computer and sensors to determine when to spray, saving in pesticide, water and time.

Jay W. Pscheidt | Mar 2024 | Video

Monitoring vineyard nutrition

This article describes how to determine vineyard nutrient needs through grapevine tissue and soil sampling. It also provides tissue testing guidelines.

Patricia A. Skinkis, Paul Schreiner | Apr 2024 | Article Peer reviewed (Gray level)

Cost of establishing and managing a vineyard in Oregon

This publication provides an economic analysis of the costs to establish and manage a Pinot noir vineyard in the Willamette Valley of Oregon. Although the information is specific to a Willamette Valley scenario, the information is useful for those who are planning to establish a vineyard.

Patricia A. Skinkis, Beau Olen | Nov 2018 | Online resource

Starting a vineyard

This article provides the important steps that need consideration in developing a vineyard business in Oregon.

Patricia A. Skinkis | Mar 2024 | Article Peer reviewed (Gray level)

Pediococcus quality control chart

Use this flow chart to avoid wine spoilage during fermentation.

James Osborne | Sep 2018 | Article

Yeast nutrients and 'stuck fermentations'

Fermentation doesn't always go as planned. Sometimes, a warm growing season can stall the process of turning grapes into wine. Here's what winemakers need to know to guard against "stuck fermentation," and a guide to the steps you can take to restart a slow or sluggish fermentation.