Reports of Goss’s Wilt to showed up in cornfields in parts of Iowa. Goss’s Wilt is a disease that develops in the surface residue of corn leaves.
Visual evidence appears as long, grayish-green to black lesions with wavy edges. This disease usually starts in the middle to upper canopy and often a few days after a thunderstorm.
Certain hybrids are more susceptible than others and also more likely to occur in fields that Goss’s Wilt appeared in the past.