Insect Alert For

Black Cutworm

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

Black cutworm migration risks will continue in the forecast for the next four nights as an active weather pattern remains in place. With a persistent pattern of low pressure in the western Plains and high pressure in the eastern and southeastern United States, south to southwest winds along with scattered areas of precipitation will be rather common across a large portion of the corn-growing region. These factors may combine to produce isolated to scattered black cutworm moth flights. Low risks are in place tonight into tomorrow morning mainly south of I-90 and west of I-75, or from the central Plains states east into Indiana and Ohio. Moderate risks return to the forecast tomorrow night into Thursday morning mainly east of I-57 in far eastern Illinois, Indiana, Ohio, and southern lower Michigan with Low risks east of I-35 as a cold front moves east and south to southwest winds increase further east across the corn-growing region. By late week into next weekend, south to southwest winds are predicted to continue but refocus to the west as low pressure develops once again in the Plains. Low risks are predicted from Kansas and Missouri northeast into Minnesota, Wisconsin, and across southwest lower Michigan into Indiana. Moderate risks are in the forecast from Iowa and Minnesota east into Wisconsin and Illinois Friday night into Saturday morning as a cold front begins to move east. Growers who have just recently planted or have yet to plant, and are located in or near a Moderate risk area are encouraged to monitor for new moth flights in the next week as these are the fields that are at greatest risk.