How to Get Rid of Stink Bugs in the House Without Setting Off the Smell

If you have ever crushed a stink bug inside your house, you probably realized right away how it got its name. Over the years I have worked with pests, I have seen people swat them with newspapers or vacuum them up without a second thought about what would happen inside the vacuum.

If you want to remove Stink Bugs without the unpleasant odor, the safest method is to gently drop them into a container with water and a small amount of dish soap. For larger numbers, a vacuum can help, but I would use the nylon stocking trick inside the hose so the insects do not end up in the vacuum bag or canister.

Why so much caution over one bug? The odor gets released when the insect feels threatened or gets crushed, so the removal method directly affects how much trouble you create for yourself.

If you do not have much time to read the whole article, here are a few key points:

Do not crush stink bugs because that is one of the easiest ways to make them release their unpleasant odor.

• For one or two bugs, use a glass with a piece of paper or a container of soapy water.
• For larger numbers, a vacuum with a nylon stocking inside the hose can help.
• If they keep showing up in the same spot, check windows, doors, and other possible entry points.
• A few bugs inside the house usually mean they found shelter for the colder months rather than a place to reproduce indoors.

First, Let’s See Why Stink Bugs Show Up Inside the House at All

When you find a few stink bugs near a window in the fall, their arrival is usually tied to a search for a warm, protected place. Adult brown marmorated stink bugs look for shelter where they can spend the cold season.

The National Pesticide Information Center says they enter through openings in a house and stay in protected spaces until warmer weather arrives. They often end up near windows when heat or daylight makes them active again.

We have already written about how the brown marmorated stink bug reached Allentown and spread across the United States. The same trait that allowed it to travel hidden inside shipments also helps it find small protected spaces around a house.

5 Ways to Remove Stink Bugs From Your House Without Triggering the Smell

The right method depends on how many bugs you have and where you find them. Let’s go through a few tricks that have worked very well for me.

1. Make a Bug Trap With a Container of Soapy Water

Here is my first choice when I see one or two stink bugs crawl across a wall.

Pour a little water into a shallow container and add a small amount of liquid dish soap. Hold the container below the bug, then gently touch it with a piece of cardboard above the spot where it sits. I stole this trick from the experts on this website, where I often find similar tips.

I would hold the container very close to the wall because the bug has less room to open its wings before it drops.

2. For One Bug, Use a Glass and a Stiff Piece of Paper

If the stink bug sits still on a flat wall, I would skip the soapy water.

Cover it with a glass.

Then slowly slide a stiff piece of paper between the wall and the rim of the glass. Once the bug is inside, you can carry the glass over to the prepared soapy water.

Why do I like this method? You control the entire movement and avoid pressure on the bug’s body.

3. Put a Nylon Stocking Inside the Vacuum Hose

With around ten bugs, the previous methods become less useful. At that point, I would use a vacuum, but I would stop the bugs before they reached the bag or canister.

Pull a knee-high nylon stocking over the end of the hose. Push the rest of the stocking several inches inside, then secure the outer part with a rubber band.

When you turn on the vacuum, air passes through the stocking, but the bugs stay trapped inside it. Afterward, turn off the vacuum and empty the stocking into soapy water.

The first time I saw this, I thought it almost looked too simple. Still, it solves a very real problem because the bugs stay out of the vacuum’s internal parts.

4. Place a Shallow Container of Soapy Water Under a Light

You know that old trick about using your opponent’s strength against them. Here, stink bugs are your opponents.

If stink bugs come out in the same room during the evening, you can use their tendency to move toward light.

Take a shallow metal or plastic container and fill it with water plus a few drops of liquid dish soap. Place it in a darker part of the room, then aim a lamp toward the water.

5. For Large Numbers of Bugs, Have a Professional Inspect the Entry Points

How many bugs are too many for a DIY method? The number alone does not always tell you much, but the pattern already tells us quite a bit.

If you remove a large number of stink bugs every day from the same part of the house and you have already sealed the openings you can reach, part of the problem probably sits in a space you cannot easily inspect from inside the room.

At that point, I would call a professional to inspect the structure and identify the entry point. I would save pesticides for a case with a clear reason for their use and a product label that allows that type of application.

Where Do Stink Bugs Most Often Enter a House?

Stink bugs most often enter through small gaps around windows and doors, especially in the fall when they search for a protected place for the colder months. Gaps around pipes, vents, and exterior wall joints can also serve as entry points.

If they appear around the same window for several days in a row, start your inspection on that part of the exterior wall. For bugs that show up near the ceiling, check the space above the ceiling and attic access because the spot where you see them inside the room may differ from the original entry point.

Here is one more small trick you may not have considered: Window air-conditioning units deserve special attention because gaps around the side panels often leave enough room for insects to pass through. The same applies to the bottom edge of a door, where worn weatherstripping can leave a gap that looks insignificant from the outside.

Common Mistakes That Cause Stink Bugs to Come Back

The most common mistake is to remove bugs from the room without inspecting the exterior of the house. If the opening remains accessible, new bugs can use the same route several days later, so the problem can seem as if it keeps coming back.

Another mistake is to treat only the visible part of the problem without checking what sits deeper inside the structure. With stink bugs, the hidden area can be a wall void or a space around a frame where they occasionally emerge into the room.

Another mistake is random insecticide spray on the spot where the bugs appear. A spray may kill individual bugs, but it will not seal the route used by the next ones.

Problems also arise when the same DIY trick gets used in every situation. The number of bugs and the place where they appear should determine the method, because an old tip will not produce the same result in every case.

If one or two bugs show up once in a while, manual removal may be enough. If the number goes up day after day, it is time to find the exact entry point.

What Should You Do If You Already Crushed a Stink Bug?

If you already crushed a stink bug, remove the remains from the surface as soon as possible and take them out of the room. On hard surfaces, warm water with a mild detergent suitable for that material is usually enough.

The smell usually fades over time, so fresh air can help after you clean the area.

One more important thing! Your hands! If the smell stays on your hands, wash them right away with soap and water.

Are Stink Bugs Dangerous to People and Pets?

Stink bugs that enter homes are generally a nuisance rather than a health threat. Brown marmorated stink bugs do not bite people or pets, carry any known diseases, or cause structural damage inside a house.

The bugs do not reproduce inside homes, so a few near a window do not mean you have a colony that grows behind the wall.

For dogs and cats, there is also no reason to panic if a stink bug simply appears in the room. A problem can occur if a pet tries to eat one because the foul-tasting secretion may cause excess drool or temporary mouth irritation.

A Few Interesting Facts I Found During My Research on Stink Bugs

As I researched the topic, I came across several details I had not known before. The brown marmorated stink bug was first officially recorded in the United States in Allentown in the late 1990s, although it probably arrived several years earlier hidden inside imported goods.

Even more interesting to me was a USDA study in which homeowners in areas where farmland bordered woods reported an average of more than 3,000 stink bugs around their homes. Scientists even used detector dogs to locate places where the bugs spent the winter. During that research, the USDA also found that dry dead oak and locust trees served as common natural winter shelters.

One Last Thing!

People sometimes ask me which spray solves the problem fastest. I would first want to know which opening the bugs use to get inside. That works much better! You know the old saying: An ounce of prevention is worth a pound of cure.

If I really had to deal with these little stinkers, I would use a glass or a container of soapy water for one stink bug. For larger numbers, I would switch to a vacuum with a nylon stocking.