Picture 1: Adult alfalfa weevil Alfalfa weevils, key pests of alfalfa hay, have been showing pyrethroid insecticide resistance within the Intermountain region, specifically in the Scott Valley area west of Mount Shasta.
It's that time of year again to watch for those evil alfalfa weevils! Weevils are key pests of alfalfa, causing yield and quality losses mainly to the first alfalfa hay cutting.
