Eggs are laid on blooming or succulent soybeans. Blooming, open- canopy fields are highly preferred. Small earworms may be found in flower clusters. Feeding is usually first on foliage and later on pods. Severe pod damage and defoliation may occur.
Adults are green, shield-shaped bugs.
They fly readily and produce a distinct buzz when flying. Stink bugs give off a foul odor. Young bugs do not have wing covers and are green with black, orange and white markings. Stink bugs suck the juices from immature soybean seeds and cause pod drop, yield loss, and quality decrease. These insects also spread yeast spot disease of the bean.