Insect Alert For

Western Bean Cutworm

Risk Level:
Moderate Risk
Affected Area:
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Alert Details

Western bean cutworm risks continue in the forecast, but peak flight has occurred in many areas this growing season. We may continue to see peak flight especially in the Great Lakes region from northern Wisconsin east into central/northern lower Michigan and eastward into southern Canada, but the flight has rapidly decreased in all areas further south including the central Plains and also into the southern Great Lakes region. As a result, Moderate risks for more scattered issues are predicted in far northeast Colorado into central and northern Nebraska, as well as in the aforementioned areas of the Great Lakes where moth flights remain. Low risks are found in neighboring states to the Moderate risk including South Dakota, Minnesota, Iowa, northern and eastern Illinois, northern Indiana and Ohio, as well as portions of southern lower and upper Michigan. Growers in or near a risk area should continue monitoring traps but more importantly scout those most vulnerable fields that may still be seeing egg-laying and hatch, especially in late or re-planted fields that are not as advanced, or in fresh market fields that were intentionally planted later.