The type of damage varies with plant age. Nearby, mowed alfalfa fields are commonly a source of large numbers of lygus bug adults. A number of practices may be employed to reduce or control the movement of adults from alfalfa into nearby bean fields. A breeding program is underway to develop beans with host plant resistance to lygus bugs. Populations of these biological control agents should be conserved by minimizing applications of broad-spectrum insecticides.
Check fields twice weekly.
Take a series of 5 to 10 sweeps in four to six areas of the field, making certain that all plant growth types occurring in the field are sampled. May result in mite outbreak. Ground or air application. Do not feed treated vines to livestock. Lygus bug populations may be resistant to dimethoate in some areas.