Yield loss can be substantial. Shield-shaped bugs similar in appearance to the green stink bugs but dull brown and somewhat smaller. Younger bugs closely resemble adults but have no wings and are smaller. Picture of Brown Stink Bugs Stem Feeders Loss from stem feeding insects is relatively minor. Other stem feeders regularly occur but are infrequently of economic importance.
Adults are green triangular-shaped insects which are blunt in front and pointed at the rear.
Young are similar to adults but are brownish, have no wings, and have numerous spines over the back. Young soybean plant stems are fed upon near the soil. Feeding punctures girdle the stem, and plants frequently lodge during cultivation or windy periods. Lodging may result long after the damage occurred and is usually not yield reducing. Adults are charcoal gray beetles with very long antennae.