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Article
Stalk Borers Begin Migration to Corn
Integrated Crop Management News
  • Erin W. Hodgson, Iowa State University
  • Adam Sisson, Iowa State University
Document Type
Article
Publication Date
5-28-2015
Abstract

Degree days are a useful tool to estimate when common stalk borer larvae begin moving into cornfields. Start scouting corn for larvae when 1,300-1,400 degree days (base 41°F) have accumulated. Temperatures have been variable this spring and degree days have been slowly increasing. Southeastern Iowa reached this important temperature benchmark this week (Fig. 1) and therefore scouting for migrating larvae in corn should begin now to make timely treatment decisions. Consider applications at peak larval movement, or 1,400-1,700 degree days (base 41°F).

Copyright Owner
Iowa State University
Language
en
File Format
application/pdf
Citation Information
Erin W. Hodgson and Adam Sisson. "Stalk Borers Begin Migration to Corn" (2015)
Available at: http://works.bepress.com/erin_hodgson/185/