Skip to main content
Article
Alfalfa Weevil Scouting in 2010
Integrated Crop Management News
  • Adam Sisson, Iowa State University
  • Erin W. Hodgson, Iowa State University
Document Type
Article
Publication Date
5-3-2010
Abstract
Now is the time to scout for alfalfa weevil larvae in most crop reporting districts in Iowa. The scouting threshold has not yet been reached for northern and west central districts of the state but scouting dates are coming up quickly. Growers in the southern three districts should start scouting for larvae at 200 growing degree days (using a base of 48 F), while those in the central and northern regions should start scouting at 250 growing degree days. This means that growers should presently be scouting fields in southern and most of the central districts of the state. Scouting for larvae should begin May 4 in the west central district and May 7 for all three northern districts of Iowa (Figure 1).
Copyright Owner
Iowa State University
Language
en
File Format
application/pdf
Citation Information
Adam Sisson and Erin W. Hodgson. "Alfalfa Weevil Scouting in 2010" (2010)
Available at: http://works.bepress.com/erin_hodgson/111/