Insect Alert For

Corn Earworm

Risk Level:
Affected Area:
Full page
Alert Details

An active weekend and early week of weather is anticipated across the corn-growing region as a low pressure system and attendant cold front moves slowly east and southeast through the region. Corn earworm migration possibilities will continue on a nightly basis to the east of the front in at least light to moderate south to southwest winds. Low risks are found tonight into tomorrow mainly from Kansas and Missouri north as far as Wisconsin. Low risks do expand east into the I-75 corridor in southeast lower Michigan and western Ohio by tomorrow night into Sunday, with most risks continuing to focus along and east of the I-35 corridor through the period. As the cold front makes more of a move east by early next week, most migration risks will focus east of the I-55 corridor in Illinois by Monday into Tuesday with little to no concern thereafter as northwest winds return at least for a day or so. The primary threat at this point in the growing season is with fresh market/vegetable/produce/processing growers that have vegetables or other hosts at a favorable stage of growth. Corn is not at a susceptible stage to damage yet in the majority of the corn-growing region.