Western Bean Cutworm
Recent above average temperatures have continued to allow rapid western bean cutworm development and emergence across the corn-growing region. Peak flights are predicted to either continue or commence from western/northern Nebraska and southeast South Dakota east into southern Minnesota, northern Iowa, Wisconsin, far northern Illinois, northern Indiana, lower Michigan, and northwest Ohio this week. Increased risks should also spread into Ontario, Canada and also into eastern Ohio, Pennsylvania, and New York as the week progresses. The upper Midwest will also be at an increased risk by the end of the week with the far northern corn-growing region from eastern North Dakota into central Minnesota also potentially seeing more moths appear. In areas where peak flights are or have occurred and where crops are in critical stages for damage, growers are urged to scout for recently laid egg masses and new hatches.