Manage Lygus by Managing Nearby Alfalfa
As a preferred host, alfalfa hay can be managed to minimize movement of lygus into cotton by staggering cuttings to preserve habitat. Leaving small uncut strips at each harvest is very valuable in limiting the movement of lygus into neighboring cotton. When interplanted with cotton, alfalfa will attract lygus bugs away from the cotton crop and prevent massive dispersal into cotton fields. Alfalfa strips also serve as reservoirs for predators and parasites that will eventually move into cotton and help suppress spider mites, lygus, and worm pests.
Where strips of alfalfa grow within or along edges of the cotton field: