Insect Alert For

Black Cutworm

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

An active weather pattern that will likely produce rainfall across a large portion of the corn-growing region over the next several days may also lead to scattered black cutworm moth flights given the overall favorable pattern setup. South to southwest winds are likely to increase across the Plains and western corn-growing region today into tonight, and Moderate black cutworm migration risks are in place across this region. The greatest risk area is focused from western Minnesota and Iowa into Nebraska and eastern South Dakota. Low risks extend as far east as the Mississippi River. As a cold front moves southeast into the northern corn-growing region tomorrow and tomorrow night, the Moderate risk area focuses further east into especially southern Minnesota and Wisconsin, with Moderate risks from there southwest into Iowa, eastern Nebraska, northern Missouri, and northern Illinois. By Saturday night into Sunday, the Moderate risk then shifts even further east into the southern Great Lakes region and eastern corn-growing area, or from central Illinois into Ohio and north into southern lower Michigan and southwest Ontario, Canada. No additional risks are predicted after midday Sunday, but another weather system next week may result in additional risks being placed in the forecast in subsequent outlooks as the weather pattern is likely to remain active through the rest of the month.