Integrated Crop Management News
 

Document Type

Article

Publication Date

5-2-2013

Abstract

Alfalfa weevils develop based on temperature or accumulating degree days. This cool spring has delayed all insect development, including alfalfa weevil. Scouting in alfalfa should begin at approximately 200 degree days for areas south of Interstate 80, and 250 degree days north of Interstate 80. Based on accumulated temperatures since January, weevils are active in southern Iowa now.

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 Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user.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/.