Castle Exterminators
Stink Bug (BMSB) (Halyomorpha halys) identification infographic showing size, habitat, behavior, risk, and control
Moderate concern

Stink Bug (BMSB)

Halyomorpha halys

Size
12–17 mm
Category
Occasional Invaders

About the stink bug (bmsb)

The brown marmorated stink bug (BMSB) is an invasive shield-shaped bug that has become a major nuisance across the eastern US. They feed on fruit and vegetable crops outdoors during summer, then cluster on sunny south-facing walls in fall and push inside walls, attics, and crevices to overwinter. When crushed they release a famously pungent odor — which is why you should vacuum them up instead. Seal cracks and exterior gaps before fall, and treat the perimeter.

Quick ID

12–17 mm shield-shaped mottled brown body with distinctive white bands on antennae and legs.

In the Triangle

Major fall nuisance across the Triangle — particularly noticeable in homes near orchards and farmland.

Think you have stink bug (bmsb)s?

Free inspection from a licensed Castle Exterminators technician — Durham, Chapel Hill, Raleigh, Cary & the Triangle. We'll confirm the species and recommend a treatment plan.

Request Free Inspection (919) 606-8686

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