Insect Alert For

Corn Earworm

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

After one more night of no corn earworm migration risk due to a lack of southerly winds, a Moderate risk comes back into the picture immediately on Saturday night into Sunday morning across portions of the Plains states. Low pressure is expected to develop and deepen quickly across the western Plains states and southerly winds should increase to the east of the low pressure especially from Kansas north into Nebraska, South Dakota, western Iowa, and southwest Minnesota. A Moderate corn earworm migration risk is in place across this area with Low risks extending as far east as near the Mississippi River and north to near the I-94 corridor in Minnesota and the North/South Dakota border. By late in the weekend and early next week, Low risks remain across much of the central and southern corn-growing region as this weather system moves from west to east through the Midwest and into the Great Lakes region. A Low risk is also back into the forecast by mid-week across the Plains and western Midwest as the next low pressure system develops and southerly winds return to the region.