The 2014 field season was a bit of a challenge for corn growers in Wisconsin, to say the least. Growing conditions were poor, which made for a lot of challenges including diseases. On the top of that list in Wisconsin was Northern Corn Leaf blight (NCLB). A close second was Goss’s Wilt. In 2015, NCLB again was a considerable issue along with reports of Goss’s wilt and eyespot. NCLB hit the state hard anywhere from prior to the VT growth stage through to late reproductive growth stages. This likely resulted in some direct loss in yield, but also led to increased levels of stalk rot which caused lodging in some fields.
Soil Science Extension
University of Wisconsin Madison