The stink bug is of foreign origin and a relatively new pest to Missouri. The most common species, the brown marmorated stink bug, was first sighted in the state in 2013. However, the insect has quickly established itself as an agricultural and residential nuisance. When crushed or disturbed the adult bugs emit a disgusting odor that has given the bug its name.

Biology & Life Cycle

In the spring, brown marmorated stink bug adults emerge from overwintering sites (houses, barns, storage buildings and dead trees) and become active on nearby crops during warm days. In the spring and throughout the summer, brown marmorated stink bug adults feed, mate and lay eggs.

The brown marmorated stink bug is not harmful to people, structures or pets. They do not bite, sting, suck blood or spread diseases; and, unlike termites, they do not eat or bore into wood structures. However, adults emit an offensive odor if disturbed or crushed.

Stink bug
Stink bug

Habitats in Missouri

Since at least 2013, the brown marmorated stink bug has been slowly spreading throughout the state of Missouri, mostly in the eastern (including St. Louis area) and southern regions. In addition to causing damage to many types of plants and fruit in the warmer months, the pest becomes a nuisance to homes in the fall as it is attracted to the warmth offered by buildings—a perfect place to lay their eggs and serve as an overwintering site.

Diet & The Search for Food

While stink bugs are known to feed on agricultural crops in large numbers, stink bugs are not picky eaters. Therefore, it is important to store food in airtight containers and dispose of garbage regularly. Also, make sure to wipe down counters and sweep floors to eliminate crumbs and residues. Stink bugs, especially those readying themselves for winter, will eat whatever they come across.

Request a Free Pest Inspection

Request a Free Pest Inspection

Or call or text us at 636-297-1335

Or call or text us at 636-297-1335

Management & Eradication

Stink bugs are insects that are known to invade homes and buildings in overwhelming numbers. If an entry point exists, the bugs will lay down a scent for others to follow it. Sealing off entry points, repairing or replacing screens, and turning off lights in the evening are effective methods of deterring the unwanted guests.

Lastly, think before you squish! When many people find the slow-moving stink bug, they want to crush them. However, doing so releases a foul-smelling odor from their pores that you do not want to experience, especially inside your home or business.

Please visit the University of Missouri’s Brown Marmorated Stink Bug webpage for more information.
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