Goss’s bacterial wilt and leaf blight (Goss’s wilt), caused by Clavibacter michiganensis subsp. nebraskensis (Cmn), has re-emerged in the Corn Belt as an economically important disease of corn. In 2011, the disease was widespread throughout Nebraska (confirmed in more than 67% of counties through 2010), Iowa (80 percent of counties), Illinois (30 percent of counties) and Minnesota (30 percent of counties). Numerous reports of the disease were also confirmed in northwest Indiana.
We are currently doing field, greenhouse and lab research on this important pathosystem. Specifically we are interested in the epiphytic life stage of this bacterium on corn and how it may contribute to disease.