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Article
Alfalfa Weevils Active Throughout Iowa
Integrated Crop Management News
  • Erin W. Hodgson, Iowa State University
Document Type
Article
Publication Date
4-15-2015
Abstract
Adult alfalfa weevils begin moving as soon as temperatures exceed 48°F and begin laying eggs in alfalfa. Alfalfa weevil eggs develop based on temperature, or accumulating degree days, and hatching can start around 200-300 degree days. Start scouting alfalfa fields south of Interstate 80 at 200 degree days and fields north of Interstate 80 at 250 degree days. Based on accumulated temperatures since January, weevils could be active throughout Iowa (Fig. 1).
Copyright Owner
Iowa State University
Language
en
File Format
application/pdf
Citation Information
Erin W. Hodgson. "Alfalfa Weevils Active Throughout Iowa" (2015)
Available at: http://works.bepress.com/erin_hodgson/108/