How to Get Rid of Stink Bugs – A Step-by-Step Guide
30-second answer: seal entry points, vacuum the ones inside, set traps — most homes do not need spray.
TL;DR — if you only do three things
- Confirm it is a stink bug, not a bed bug — the differences are in this guide.
- Vacuum the ones you can see into a sealed bag and empty it outside — do not squash them.
- Still finding stragglers? Use a trap or spray — see the picks.
First, make sure it is a stink bug
Stink bugs are shield-shaped, about the size of a fingernail, with six legs and a flat back. When disturbed they release a distinctive smell — that is how they got the name. They are slow indoors, usually gather near sunny windows, and do not bite.
The confusion that matters is with bed bugs. Bed bugs are smaller, oval, reddish-brown, and live in mattresses and upholstery. If your bugs are near windows and smell when touched, you are dealing with stink bugs — a nuisance, not a health problem. See the full comparison.
How to get rid of stink bugs in your house
Work through these steps in order. The goal is to remove what you can see today, then close the gaps so they cannot return.
Confirm it is a stink bug, not a bed bug
Stink bugs are shield-shaped, about 1.7 cm long, and smell when disturbed. Bed bugs are small, oval, flat, and hide in mattresses. If you are seeing a few shield-shaped bugs near windows, they are stink bugs.
Remove the ones you can see
Use a vacuum with a narrow nozzle or a bag you can seal. Empty the bag or canister outside right away so the smell does not linger in the house. Do not squash them — the odor is their defense.
Set a light-and-soap trap for the stragglers
Fill a shallow pan with soapy water, put it in a dark room, and aim a desk lamp at it. Stink bugs fly toward light, land in the water, and cannot escape.
Seal entry points
Caulk cracks around windows, doors, siding and utility lines. Install or repair door sweeps and window screens. Pay attention to attics and dryer vents, which are common entrances.
Prevent next season
In late summer, apply an outdoor perimeter treatment around doors and windows before they start looking for winter shelter. Keep outdoor lights low and trim branches touching the house.
Sprays and traps that work
Indoor stink bug control is mostly physical: vacuum, trap, seal. If you want an assist, a pyrethrin spray spot-treats the bugs you can reach and an indoor trap catches the ones you cannot. Skip foggers and most indoor pesticide barriers — they rarely solve a stink bug problem because the bugs keep finding new gaps.
For the garden, hand-picking into soapy water and planting strong-smelling herbs near doors is the low-cost route; perimeter sprays help when the population is heavy.
We compare the sprays, traps and seal kits that are actually worth the money in the picks below.
Our recommended picks
We may earn a commission from qualifying purchases made through links below at no extra cost to you. Marked as sponsored.
Stink bug trap box
A light-baited trap that catches indoor stragglers without spraying.
Window and door seal tape
Quick-sealing foam strips for gaps you cannot caulk in one afternoon.
Ready-to-use stink bug spray
A pyrethrin spray for spot-treating indoor stink bugs safely.
More guides
Frequently asked questions
Are stink bugs dangerous or do they bite?
No. Stink bugs do not bite, sting or cause structural damage. Their main defense is a strong odor they release when disturbed, which can linger on surfaces.
Why are stink bugs suddenly everywhere in my house?
In late fall and winter, stink bugs look for warm places to overwinter. They gather on sun-warmed walls, then slip through tiny gaps around windows, doors, vents and siding.
Does squishing stink bugs attract more?
The smell from a squished bug can linger and may draw other insects. Remove bugs with a vacuum or soapy-water trap instead, and seal the entry points so the smell does not matter as much.
Will dish soap and water kill stink bugs?
A soapy-water trap drowns stink bugs effectively because the soap breaks surface tension and they cannot escape. Spraying soapy water directly also works for the ones you can reach.
When is the best time to treat stink bugs outside?
Late summer to early fall, before they start seeking winter shelter. Treat the perimeter around doors, windows and vents, and seal cracks first so the treatment has fewer gaps to defend.
Do stink bugs come back every year?
They can, especially in homes with many entry points. Sealing gaps, maintaining screens and treating the perimeter before the cold season are the steps that break the yearly cycle.