Integrated Crop Management News
 

Document Type

Article

Publication Date

4-12-2021

Abstract

Adult alfalfa weevils become active and start laying eggs as soon as temperatures exceed 48°F. Like other insects, the development of alfalfa weevil depends on temperature, and we can use accumulation of growing degree days (GDD) to predict activity. Alfalfa weevil egg hatching begins when 200-300 GDD (base 48°F) have accumulated since January 1.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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