Insect Alert For

Black Cutworm

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

A more active weather pattern is set to return to much of the corn-growing region by this weekend and beyond as dominant northwest flow gives way to zonal or even southwesterly flow at times. With an increase in temperatures and southerly winds comes at least a risk of some black cutworm migration possibilities. Low risks are in the forecast tomorrow night into Saturday morning mainly east of I-35 from eastern Kansas, Missouri, and Iowa into southern Wisconsin, Illinois, and western Indiana as a corridor of southerly winds sets up. Low risks then focus mainly south of the US20 corridor from eastern Kansas and Nebraska into Iowa, Missouri, Illinois, and into the southern Great Lakes and eastern corn-growing region over the weekend into early next week as a frontal system meanders in the area. At any point in time, southerly wind flow is not expected to be particularly strong so only Low migration risks are in the forecast. Growers with newly emerged corn should continue scouting efforts as flights that occurred last month may have resulted in larvae appearing now.