Insect Alert For

Corn Earworm

Risk Level:
Low
Affected Area:
Full page
Alert Details

A weak cold front or wind shift boundary is predicted to move east from the Plains into at least a portion of the corn-growing region in the next 24 hours or so. Southerly winds are present east of this front but mainly focused in a corridor up the Mississippi River valley as high pressure is holding firm further east. A Low corn earworm migration risk is predicted overnight tonight into tomorrow morning in this corridor, especially from eastern Kansas into far eastern Nebraska and South Dakota, and as far north as Minnesota and Wisconsin but mainly west of Lake Michigan and the Illinois/Indiana state line. Little to no migration risk is predicted for the remainder of the week and into the weekend as southerly winds are not expected to be widespread or prominent enough to warrant a risk inclusion at this time, but growers with crops at sensitive stages to corn earworm damage, especially gardens and fresh market fields, but also more advanced corn fields that may be now tasseling should scout and/or monitor traps.