Late blight, caused by the fungus-like pathogen Phytophthora infestans, has been confirmed in a potato field in Marquette County this morning, July 14, 2010 according to Amanda Gevens, University of Wisconsin-Extension plant pathologist. Gevens said, “This is the first confirmed report of late blight in Wisconsin for 2010. Infection was isolated to a small section of the field and symptoms suggest that the infection occurred approximately 5-7 days ago.”
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