Kansas State University

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Extension Entomology

Alfalfa Pests

–by Dr. Jeff Whitworth and Dr. Holly Schwarting

Fields sampled three weeks ago had relatively large numbers of potato leafhoppers, i.e. 20+/20 sweeps.  These fields were swathed approximately two weeks ago and averaged 2 potato leafhoppers/20 sweeps, below the treatment threshold. Thus, timely swathing can be very beneficial in managing potato leafhoppers, without use of an insecticide application.

 

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