Stink Bug Basics

Brown marmorated stink bug
Brown marmorated stink bug Halyomorpha halys (Stål). Photo: iStock.

An invasive insect unintentionally brought over from Asia, the brown marmorated stink bug (BMSB) poses a significant risk to specialty crop growers.

Origins of BMSB

With few natural predators in North America, BMSB has spread quickly. Learn about the pest’s biological roots in Asia, its reach throughout North America, and our team’s work to identify, monitor, and manage the risks.

Life Stages

Learn to identify BMSB across its life stages and recognize associated crop damage.

Look-Alike Insects

If you confuse BMSB with the native brown stink bug of the genus Euschistus, you aren't alone. They look alike. But this page will show you a quick and easy identifier.