Insect Alert For

Black Cutworm

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

A strong low pressure system is likely to develop and move through the corn-growing region over the next few days. Similar to the system late last week, southerly winds are likely to be quite strong and gusty especially to the south of a northward-advancing warm front. Given the overall expected weather setup, Moderate black cutworm migration risks are predicted tonight into tomorrow from eastern Kansas into much of Missouri and southern Illinois, with Low risks from central Kansas into southeast Nebraska, southern Iowa, much of Illinois, Indiana, western Ohio, and Kentucky. By tomorrow into tomorrow night, an even more favorable migration potential across a larger area on strong south to southwest winds may be in store, with Moderate risks from Missouri into eastern Iowa, southern Wisconsin, Illinois, Indiana, Kentucky, Ohio, lower Michigan, and southwest Ontario, Canada and Low risks mainly just to the west of the Moderate risk area and points east (not in the Moderate risk) as a cold front moves east. Once this cold front moves through late Tuesday into Wednesday and into early Thursday, the migration risk will cease. Growers should be advised that it is very likely that black cutworms may already be present in many areas of the corn-growing region given the overall very active weather pattern in the last month or so. Active trapping now and scouting will be important once planting has commenced this spring.