Insect Alert For

Black Cutworm

Risk Level:
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Alert Details

Remnants of Tropical Storm Cristobal are expected to track from Arkansas north into Missouri, Iowa, and eventually into the northern Great Lakes/Canada by mid to late week. Southerly to southeasterly winds on the system’s easterly and northeasterly side may bring black cutworm moths north from mid-south and Deep South source regions, and Low migration risks are predicted mainly across Minnesota, Wisconsin, and lower Michigan but a few late or re-planted fields further south into northeast Iowa, northern Illinois, northern Indiana, and into northwest Ohio may also be impacted. Tomorrow, south to southwest winds east of the low track and eventual trailing cold front south of the low pressure. A more favorable wind setup and source region are expected tomorrow night into Wednesday, actually, so Moderate migration risks are predicted across later-planted areas of eastern and northeast Wisconsin as well as into central and northern lower Michigan where late planted and many re-planted fields due to cold temperatures and excessive rains occurred in the past month. Little to no additional risk is predicted for the remainder of the week and into next weekend, but growers with corn at susceptible stages to damage from black cutworms are encouraged to continue to scout newly-emerged fields that are not yet at the five leaf stage.