Robert M. Harveson, Extension Plant Pathologist
Panhandle R&E Center, Scottsbluff
Goss’ wilt and leaf blight is a destructive bacterial disease of corn, caused by Clavibacter michiganensis subsp. nebraskense. It was first identified in 1969 from Dawson County near Lexington making it a true Nebraska native.
Over the next decade, it was identified from at least 53 other counties in Nebraska and also spread into Iowa, South Dakota, Kansas, and Colorado. The disease was eventually identified from additional U.S. corn-growing states before disappearing in the mid-1980s just as suddenly as it first appeared.