Phillips County News - One Nation, Under God

By Kevin Wanner
Montana State University Entomoloy 

Grasshopper Management in Winter Wheat

 

September 23, 2020

Emerging winter wheat can be particularly vulnerable to damage. Adult grasshoppers are more difficult to control and can fly into emerging winter wheat fields from surrounding grassy areas.

Treatment thresholds for emerging winter wheat are lower. Border treatments applied as insecticidal sprays or seed treatments are the main recommendation for protecting emerging winter wheat. Typically, spraying 150 feet beyond the edge of the crop or 1-2 passes with treated seed around the perimeter of the field is a sufficient border. For adults, the higher end of the label rate is recommended. When a...



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