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Growers seek an edge against powdery mildew

June 11, 2021

At Oregon State University, Sarah Lowder wants to know more about grape powdery mildew and the fact that growers are having disease control issues due to fungicide resistance. "Although growers have to deal with this issue every year, some seasons are worse than others - mysterious in some cases as to why the increase, although warm weather early in the season that prompts a lot of fast shoot growth and unprotected tissue could be a factor," she said.