Insect Alert For

Corn Earworm

Risk Level:
Low Risk
Affected Area:
Full page
Alert Details

Corn earworm migration risks will be present on a near daily basis for much of this week as a more active zonal to even southwesterly flow regime sets up across at least portions of the corn-growing region. There are still some finer details to work out, but Low migration risks are predicted tonight into tomorrow from Kansas, Missouri, and southern Illinois as far north as Minnesota and Wisconsin as southerly winds blow east of a weak cool front moving through the Plains states. An organized area of thunderstorms is likely to develop later tonight into tomorrow across the Mississippi River valley and push east into the southern Great Lakes – this may temporarily shunt the primary corridor for migration chances across the far southeastern corn-growing region tomorrow night into Thursday. The best migration chances may focus later in the week as a cold front moves through, Low risks are already in place across much of the eastern two-thirds of the corn-growing region by that time and Moderate risks are likely in subsequent forecasts later this week once placement confidence increases.