For the first time since the trapping of Western bean cutworm moths in corn began in 2006, Ohio State University Extension entomologists have identified egg masses and larvae. The find reveals that populations continue to increase and that growers will really need to monitor the pest in the future.
“The infestation of egg masses and larvae was light, but this just verifies that we won’t see this pest decreasing in the coming years and growers will really have to start scouting for it each season,” said Andy Michel, an OSU Extension entomologist with the Ohio Agricultural Research and Development Center.
Western bean cutworm is a common pest of Western corn-producing states that is rapidly expanding eastward and finding a niche throughout the Midwest. The number of adult moths trapped in Ohio each year has been steadily increasing.
In 2006, entomologists caught three moths in the traps. In 2007, six were caught.