Several related species including the tarnished plant bug. Flat, oval; mottled with white, yellow, and black splotches that give it a tarnished appearance. 1/4 inch long. When disturbed, these active insects fly or move to opposite side of stems. Are seldom seen.
Beans.
Adults and nymphs pierce and suck juices from the pods, stems, and blossoms. This feeding causes blossoms and young pods to drop from the plants. Feeding on the older pods causes the pods and seed to be pitted and undesirable for food. The pods may also be deformed.
Throughout United States.
Eliminate weeds in surrounding areas during growing season and in fall to eliminate overwintering sites.
Apply a botanical insecticide where serious infestations occur. Natural predators of lygus bugs include big eyed bugs, damsel bugs and collaps beetles. Several parasites attack the eggs and nymphs of lygus bugs.
Treat with a registered insecticide.
Notice: Because pesticide labels can change rapidly, you should read the label directions carefully before buying and using any pesticides. Regardless of the information provided here, you should always follow the latest product label when using any pesticide. If you have any doubt, please contact your local Extension agent or pesticide dealer for the latest information on pesticide label changes.
Disclaimer: Commercial products named on this site are for informational purposes only. Virginia Cooperative Extension does not endorse these products and does not intend discrimination against other products which also may be suitable.
Prepared by Alexandra Spring and Eric Day (Modified from a publication by the USDA)