Insect Alert For

Corn Earworm

Risk Level:
Affected Area:
No risk Full page
Alert Details

A quick-moving cold front on northwest flow is expected to pass through the corn-growing region late tomorrow into Thursday morning. A brief period of south to southwest winds ahead of this front may bring an isolated, shorter-distance corn earworm migration possibility to northern Kansas, northern Missouri, eastern Nebraska, Iowa, southeast Minnesota, southern Wisconsin, and northwest Illinois tomorrow night into midday Thursday. Such events historically typically only produce isolated moth flights, thus just a Low risk mainly due to the lack of time for a more established southerly flow. Otherwise, little to no migration risk is in the forecast at this time. We are watching next weekend but at this point, any southerly flow looks rather weak but we will continue to monitor.