Late blight hits Wisconsin’s spuds

With late-blight detections in Adams and Waushara counties, and a new detection in Wood County, University of Wisconsin-Madison potato and vegetable plant pathologist Amanda Gevens called on producers to continue to communicate new detections to her office or their county agents. Her lab offers free late-blight diagnostics and genotyping. Contact her at or 608-890-3072. Visit for recommended late-blight fungicides. Gevens said the genotype/strain of the late blight in all counties where late blight had been detected as of late last week is US-23, which is sensitive to phenylamide fungicides like mefenoxam and metalaxyl. Source: AgriView