Insect Alert For

Black Cutworm

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

A fairly potent storm system is expected to track through the corn-growing region especially mid-week this week. This system may bring a low/isolated black cutworm migration risk with it initially tomorrow night into Wednesday morning from Missouri and central Iowa as far east as the I-75 corridor in western Ohio and southern Michigan, and mainly along/south of I-94 in Wisconsin and southern lower Michigan. By Wednesday night into Thursday, the low pressure begins to move northeast and a cold front is expected to push east. Any migration risk will be confined to areas mainly along/east of I-55 in southeast Missouri and central Illinois across the southern Great Lakes and eastern corn-growing region. Little to no risk is predicted for the remainder of the week. Growers are advised to scout fields and also check degree day accumulations as black cutworm larvae may be present in areas that saw flights in mid-late April and potentially even into early May now, especially in the central and eastern corn-growing region where flights were more probable/numerous.