Adult western bean cutworms were first collected at two locations in Iowa on June 23--the earliest date they have ever been collected in the state. Single adults were captured in blacklight traps near Correctionville (Woodbury County) in western Iowa and Ames (Story County) in central Iowa. A blacklight trap in Boone County captured 19 adults on June 26. A historical look of western bean cutworm captures for Woodbury County is shown in the table.
Iowa State University
Rice, Marlin E., "Western bean cutworm flight starts--early!" (2006). Integrated Crop Management News. 1305.
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