Insect Alert For

Western Bean Cutworm

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

Western bean cutworm development and initial emergence/flights are beginning to take shape especially across portions of the west and southwest corn-growing region. Heat unit accumulations from north central Kansas into far western Missouri are approaching or have even exceeded initial 25% thresholds in a few areas and this region is under a Moderate western bean cutworm development/emergence risk through the next five days. Further north and east, Low development risks are in place across southeast Nebraska, southwest Iowa, northern Missouri, and into western Illinois where 25% emergence thresholds are forecast to be approached or met by late next weekend. Elsewhere, some scattered very low moth counts have been reported but heat units are not expected to reach significant emergence thresholds in the next five days. Therefore, no other risk areas are predicted but growers should continue to monitor for scattered moth appearances.