Insect Alert For

Corn Earworm

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

With northwest flow dominating the weather across much of the corn-growing region into early Saturday, no corn earworm migration risk is in the forecast for the next two nights. Growers with crops at critical growth stages, however, should continue to monitor their traps as some flights may have occurred in the past few nights. Looking further ahead, Low risks return to the forecast by Saturday night into Sunday morning as south to southwest winds increase ahead of a developing low pressure system in the far western Plains states. Low risks are predicted from the Plains east into Illinois and Wisconsin, and as far north as the US 14 corridor in South Dakota and Minnesota. Low risks then shift southeast as it is currently predicted that thunderstorm complexes will effectively develop a cold front and push it southeast into the I-80 and potentially even the I-70 corridor especially east of the Mississippi River by early next week. The risk area by Sunday night into Monday morning focuses mainly south of a Goodland, Kansas to Flint, Michigan line, and then refocuses back in the Plains states Monday night as a ridge builds back in.