What’s The Scoop on Soil Microbiology in WA Vineyards? By Elizabeth C. Gillispie, WSU Prosser IAREC; Devin Rippner, USDA-ARS Introduction Wine grape growers are increasingly interested in the role of […]
By Mercy Olmstead (originally published 2009) During the harvest season this year, Markus Keller and Bhaskar Bondada took pictures of the different types of shrivel that they were observing in […]
Authors: Thomas Henick-Kling and Jim Harbertson Late Ripening: Recalibration of Fruit Ripeness Numbers The delayed ripening we see in many Washington state vineyards poses some challenges. With good will from […]
By Thomas Henick-Kling and Jim Harbertson Dealing with Mold-infected Fruit Powdery Mildew and Botrytis infected fruit brings with it a large population of unwanted organisms such as yeast, mold and bacteria. Some of […]
By Jim Harbertson and Thomas Henick-Kling An Early Frost Might Force Harvest of Some Under-Ripe Fruit Here are some notes on what can be done with fruit that has to be […]
By Jim Harbertson, Associate Professor of Enology Know Your Phenolics! This primer will provide a short background on the principal phenolic components found in grapes and wine. The most basic phenolic compound […]
By Thomas Henick-Kling Professor of Enology A note of precaution to using cold soak The recent rains and earlier powdery mildew infections have caused damage to some grapes, the grape […]
WSU Grape Cold Hardiness Program By Markus Keller, WSU Prosser The ‘Thanksgiving freeze’ on November 24, 2010, caused damage to buds and vines that varied widely among varieties and vineyard […]
2011 Year in Review: Where was Summer? By Michelle Moyer WSU Prosser If grape production was easy, we wouldn’t define wine by the vintage. This year presented WA viticulturists with […]
2011 Overview: The Silver Lining in Summer Clouds By Michelle Moyer (Viticulture); Federico Casassa, PhD Candidate, and Jim Harberston (Enology), WSU Prosser From the Vineyard As the AgWeatherNet reports roll […]