Damon Smith, Extension Field Crops Pathologist, Department of Plant Pathology, University of Wisconsin-Madison, Roger Schmidt, Nutrient and Pest Management Program, University of Wisconsin-Madison
Tar spot has been detected on corn for the first time during the 2020 season, this week in Michigan and Indiana. In both situations these were fields with a history of the disease.
Badger Crop Doc website has posted a new item, ‘Wisconsin Corn Tar Spot Update – July 9, 2020’
You may view the latest post at