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Article
Use Treatment Thresholds for Western Bean Cutworm
Integrated Crop Management News
  • Erin W. Hodgson, Iowa State University
Document Type
Article
Publication Date
7-28-2008
Abstract
Western bean cutworm adults have begun emerging in Iowa this year, particularly in the southwest and southeast. Corn fields in the late whorl stage are most attractive to egg-laying females, with damage becoming evident in August and early September. University of Nebraska has developed a degree day model for 50 percent adult emergence. This year, 50 percent emergence of western bean cutworm moths in southern and central Iowa was approximately July 21. So now is the time to start scouting for egg masses before larvae enter developing corn ears.
Copyright Owner
Iowa State University
Language
en
File Format
application/pdf
Citation Information
Erin W. Hodgson. "Use Treatment Thresholds for Western Bean Cutworm" (2008)
Available at: http://works.bepress.com/erin_hodgson/189/