The current 2017 wet rainy weather and high humidity can create a situation where diseases can
become an issue in corn. While there are several foliar diseases that can occur on corn under
these conditions, gray leaf spot and northern corn leaf blight have been especially problematic
over the last several years. Gray leaf spot and northern corn leaf blight can cause yield losses and
the risk of infection may be an issue this year. What should a grower do about it? While applying
protective fungicides is an option, there are several things to consider before spraying. For complete report go to 2017_Corn_Diseases.