Western bean cutworms have caused significant damage to some cornfields in Iowa since 2000. In the last couple of years, this insect seems to be moving eastward in Iowa. As it expands its range, it will cause damage to those fields not protected against this insect. A network of pheromone traps have been placed throughout the state to assist in scouting efforts for this pest. Iowa State University Extension is cooperating with Pioneer Hi-Bred agronomists in eastern Iowa to survey counties where the insect has not yet been reported.
Iowa State University
Rice, Marlin E., "Western bean cutworms: status and scouting" (2004). Integrated Crop Management News. 1592.
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