Insect Alert For

Corn Earworm

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

A strong early-fall cold front is predicted to pass through the corn-growing around the middle to end of this week. With Hurricane Florence now being absorbed into the typical west-east flow across the continental United States, we expect the weather pattern to be more progressive now with more typical periodic cold front passages. Ahead of each frontal passage will come the risk of at least some isolated corn earworm migration into remaining fresh market and processing fields mainly across the northern corn-growing region. One such time period will be mainly west of Lake Michigan Wednesday night into Thursday morning and then mainly east of the lake on Thursday night into Friday morning as the front moves southeast. Growers with crops at susceptible stages to corn earworm damage should continue to monitor traps and scout fields until the crop is harvested or the threat to the crop has passed.