Trap catches of western bean cutworms increased during the first week of July. A blacklight trap operated by the Linn family north of Correctionville (east of Sioux City) collected 1 moth on June 30, 12 on July 4, 22 on July 5, 15 on July 6, and 17 on July 7. Todd Vagts, Iowa State University Extension field specialist-crops specialist, reports catching moths at Castana on July 5 and 8. Phred Linn reports that females are laying eggs in corn in Woodbury and Plymouth counties, and he has counted as many as 100 eggs on a single plant.
Iowa State University
Rice, Marlin E., "Flights of western bean cutworms increase" (2002). Integrated Crop Management News. 1835.
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