Corn Earworm Economic Threshold Calculator

Use the calculator below to estimate an economic injury level for corn earworm in soybean. You'll need to know the sampling method, row spacing, expected annual costs for control, and the price of soybeans.
  Sampling Method
Control Costs ($)
(Product + Application)
Price of Soybean ($) per bushel
Row Width
EIL:   caterpillars per
Use the scratch pad below as a simple calculator. Type in an expression and click 'Evaluate'.
  Scratch pad: =
URL: http://www.ipm.vt.edu/cew/
Copyright © 2000 Virginia Tech
Based on Corn Earworm Management in Soybean by J. W. Van Duyn and C.S. Eckel
Cooperative Extension Service, NC State University
Comments to Ames Herbert
Tidewater Agricultural Research and Extension Center