News

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 […]

Dormant Lime Sulfur in Vineyard Management By Michelle Moyer and David James, WSU Prosser When it comes to pest management, there are many decisions that need to be balanced against […]