Insect Alert For

Black Cutworm

Risk Level:
Moderate Risk Level
Affected Area:
Full page
Alert Details

Moderate black cutworm migration risks are in place tonight into tomorrow as strong southerly flow east of a deep low pressure system in the central Plains is expected to persist. Moderate risks are found in eastern Kansas, eastern Nebraska, Iowa, far southern Minnesota, central and northern Missouri, much of Illinois, southern Wisconsin, Indiana, far southern lower Michigan, and far western Ohio with Low risks extending further north into Minnesota, Wisconsin, lower Michigan, and far southern Ontario, Canada as well as Ohio and Kentucky. Moderate risks continue tomorrow night mainly east of a line from near St. Louis, Missouri to Chicago, Illinois as a cold front moves somewhat slowly to the east. Growers in the southern Great Lakes and eastern corn-growing region may see scattered moth flights into Wednesday. By Wednesday night into Thursday, winds are expected to weaken so Low risks are focused mainly along and east of the I-55 corridor in southeast Missouri, central Illinois, and east of Lake Michigan. Little, if any, additional migration risks are predicted late week and into early next weekend. Growers are advised to monitor traps and also accumulated heat unit accumulations especially with newly-planted corn as flights from late March and early April may be emerging and could potentially become a problem over the next few weeks where conditions warrant.