Integrated Crop Management News
 

Document Type

Article

Publication Date

5-17-2004

Abstract

The black cutworm is an occasional pest of corn, yet it deserves our attention because of its potential for causing economic damage. Significant flights of black cutworm adults (moths) entered Iowa during April 19-21 and were caught in pheromone traps. From these catches we can predict first cutting of corn. Black cutworms require 300 degree days (base 50°F) for larvae to be large enough to cut corn plants (which is about the length of a dime). So by calculating cutworm hatch and development over time, we can anticipate when to look for damage.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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The Iowa State University Digital Repository provides access to Integrated Crop Management News for historical purposes only. Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user. Users should make their own assessment of the information and whether it is suitable for their intended purpose. For current information on integrated crop management from Iowa State University Extension and Outreach, please visit https://crops.extension.iastate.edu/.