Brown Stink Bug

Euschistus servus

Brown stink bug on a cotton leaf
Brown stink bug on a cotton leaf. Photo courtesy of Russ Ottens. Licensed under CC BY 3.0.
Brown stink bugs are found throughout North America. They are a pest of row crops such as corn, soybeans, and vegetables and also of fruit trees.
Adult brown stink bugs have a brown, shield-shaped body and may emit a foul odor when disturbed. Unlike the more severe brown marmorated stink bugs, brown stink bugs do not have striped antennae.
Brown stink bug adult on a cotton leaf
Brown stink bug adult on a cotton leaf. Photo courtesy of Russ Ottens. Licensed under CC BY 3.0.
Nymphs resemble adults but are smaller and rounder and lack wings.
Brown stink bug nymph on a cotton leaf
Brown stink bug nymph on a cotton leaf. Photo courtesy of Russ Ottens. Licensed under CC BY 3.0.
Brown stink bugs user their piercing mouth parts to suck plant juices. On vegetables and fruit this feeding results in unsightly blemishes. In row crops, young plants can be stunted or even killed by this feeding.
Insecticides are available for partially controlling brown stink bugs, although their large size makes them difficult to control. Always read and follow all label instructions.