|Adults are flat, 3/8 inch long, shield-shaped stink bugs with red and black spotted markings; nymphs look like adults, but are smaller and more round.|
|Adults overwinter under debris. They emerge in mid-spring and lay eggs by early summer. After hatching, nymphs feed for two months, by which time they are mature. There can be 1-2 generations per year.|
Control weeds by removing, or mowing in crops or adjacent areas. Attract native parasitic wasps and flies by planting small-flowered plants.
Spray with pyrethrin.