Stink Bug Control on Long Island: Prevention and Removal

Stink Bugs on Long Island: The Unwanted Fall Houseguest

Every September and October, brown marmorated stink bugs (BMSB) become one of the most complained-about pests across Nassau and Suffolk County. Homeowners in Huntington, Smithtown, Massapequa, and throughout Long Island's suburban communities report finding dozens — sometimes hundreds — of these shield-shaped, mottled brown insects on south-facing walls, clustered around windows, and accumulating inside attics and wall voids.

The brown marmorated stink bug was accidentally introduced to the United States from Asia in the 1990s and has since spread to nearly every state. It has no significant natural predators here, which has allowed populations to explode. While it doesn't bite, doesn't breed indoors, and doesn't damage structures, a large stink bug aggregation produces a noticeable odor and creates a significant nuisance from September through April.

Why They Target Your Home

As temperatures drop below 70°F in fall, stink bugs begin searching for overwintering sites. They're attracted to:

• Heat radiating from south and west-facing walls — sunny exposures warm up first

• Light — stink bugs are attracted to artificial light, particularly at dusk

• Gaps and crevices — the same entry points that let in cold air let in stink bugs

Once inside walls, stink bugs enter a dormant state called diapause and remain there through winter. In spring, as walls warm up, they become active again — often ending up inside your living space in March and April as they attempt to exit.

Prevention: Seal Before They Aggregate

The most effective stink bug control strategy is exclusion before the fall aggregation begins — typically by early September in Nassau and Suffolk County:

• Window and door weatherstripping — replace any worn or damaged seals

• Exterior caulking — seal gaps around window frames, door frames, and utility penetrations

• Attic vent screens — inspect and repair any tears or gaps

• Chimney caps — install or repair chimney caps to prevent entry through flue

• Light management — use blinds and shades in the evening to reduce the light attraction effect

What NOT to Do

• Don't crush them — this releases the defensive odor that gives them their name

• Don't use a regular vacuum — the odor will permeate your vacuum cleaner; use a dedicated shop vac or vacuum bag that can be immediately sealed and discarded

• Don't fog or bomb — fumigation products have minimal effect on stink bugs and create other health and safety risks

Professional Treatment Options

Quest Pest Control offers fall perimeter treatments specifically targeted at stink bug aggregation areas. Applications are made in late August and September to south and west-facing walls, entry points, and aggregation sites. Residual insecticides dramatically reduce the number of stink bugs that successfully overwinter inside structures.

We serve homeowners across Nassau County (Hempstead, Garden City, Hicksville, Syosset, Massapequa) and Suffolk County (Huntington, Smithtown, Babylon, Brookhaven, Islip). If stink bugs have been a persistent issue in your home, a professional fall treatment makes a significant difference.

Looking for an exterminator near me for stink bugs on Long Island? Contact Quest Pest Control before aggregation season peaks.