Insect Alert For

Western Bean Cutworm

Risk Level:
High Risk Level
Affected Area:
Full page
Alert Details

The annual western bean cutworm moth flight continues in the usual hot spot areas for this particular insect. The flight is beginning to subside on the southern end of risk areas, however, but growers in or near predicted risk regions should continue scouting efforts until the local crop is past critical growth stages where yield loss will no longer be of concern. High risks remain focused in Nebraska where the most widespread moth activity and potential egg-laying and pressure is expected, with Moderate risks covering surrounding far northern Kansas into northeast Colorado, as well. Moderate risks are also present in central Wisconsin as well as in northern Indiana, northern Ohio, lower Michigan, and into southern Ontario and southwest Quebec, Canada where more scattered pressure is expected. Lower risks for isolated problems extend into portions of South Dakota, Minnesota, Iowa, Missouri, eastern Illinois, central Indiana and Ohio, portions of the northern lower peninsula and UP of Michigan, and then in more fringe corn and dry bean acreage in southeastern Canada. Given the narrow effective treatment window for this insect, growers are encouraged to regularly scout those fields at vulnerable stages and continue to monitor traps, as well, but traps are not always a good indicator of field pressure so regular field scouting is recommended versus relying on traps alone.