Insect Alert For

Black Cutworm

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

Black cutworm migration risks are on the increase as we head into this weekend but especially next week with what could be a very potent system expected to move through the corn-growing region. First things first, Low migration risks are predicted tomorrow night into Sunday from eastern Kansas, Missouri, Iowa, and southern Wisconsin as far east as lower Michigan, Ohio, and Kentucky as southwest winds increase ahead of a weak cool front. A brief break in the southerly winds is then expected Sunday, but look for migration chances along with strong southerly winds to ramp up across a large portion of the corn-growing region by Monday and continuing into mid-week ahead of a cold front passage. Even though we are still several days out, Moderate migration risks have already been hoisted for areas generally west of Lake Michigan Monday night into Tuesday, and then focusing mainly east of the Mississippi River Tuesday night into Wednesday as a cold front moves east. While some risk placement adjustments may be needed by early next week, growers should be advised that new black cutworm moths may arrive in a large portion of the corn-growing region next week. Appropriate trapping and eventual degree day accumulation procedures may be needed in several areas once this potential moth flight occurs.