How to Exterminate Boxelder Bugs Without Making It Worse
October 15, 2025
If you’ve ever looked out the window in fall and seen your siding crawling with small black-and-orange bugs, you already know what you’re dealing with boxelder bugs. They don’t bite, they don’t eat your house, and they’re not dangerous. But when they start showing up inside, that’s when they become a real nuisance.
Trying to figure out how to exterminate boxelder bugs can be frustrating, especially when they just keep coming back. Let’s break down what works, what doesn’t, and when it’s time to call in some help.
What Attracts Boxelder Bugs to Wisconsin Homes
These bugs aren’t trying to cause trouble. They’re just looking for a warm place to hide when the weather starts to turn.
Here’s what usually draws them in:
- Sun-facing walls, especially ones painted light colors
- Gaps around windows, vents, or siding where they can sneak in
- Boxelder and silver maple trees nearby, they feed on seeds and leaves
- Warmth from your home’s foundation or attic in fall and early spring
Once a few get in, others tend to follow. They cluster in groups and look for spots where they won’t be disturbed.
How to Exterminate Boxelder Bugs (And What to Avoid)
If you’re only seeing a few here and there, there are a few simple things you can try:
- Vacuum them up with a hose attachment. Just empty the vacuum outside right after.
- Don’t crush them. They stink and the fluids can stain walls and furniture.
- Seal entry points with caulk, weather stripping, or mesh screens around vents and pipes.
- Spray a mix of dish soap and water directly on the bugs. It kills them without harsh chemicals.
- Skip the foggers or bug bombs. They rarely reach where boxelder bugs hide, and they often make things worse by scattering bugs deeper into walls.
Why DIY Doesn’t Always Work Long-Term
The main problem with boxelder bugs isn’t just the ones you see, it’s the ones you don’t. These bugs love to squeeze into cracks, behind siding, inside attic insulation, and even behind baseboards.
Here’s why DIY treatments often fall short:
- You’re only treating surface-level bugs
- They return every year. It’s seasonal, not just a one-time thing
- Once they’re in the walls, it’s hard to reach or fully remove them
- You might chase them deeper inside, especially with over-the-counter sprays
For heavy infestations, or if you’re seeing bugs day after day, it’s time to consider calling a pro.
When to Call an Insect Exterminator Near You
You don’t need to call at the first sign of a bug, but if they’re turning up in more than one room or you’re seeing swarms gathering outside, it’s a sign that the problem is bigger than it looks.
Consider contacting a local insect exterminator near you in Wisconsin if:
- Bugs are showing up daily inside your home
- You see large clusters around windows, doors, or siding
- DIY methods haven’t made a dent
- You want to prevent the next wave before it even starts
A local exterminator knows when these bugs are most active, where they hide, and how to treat your home in a way that stops them from coming back year after year.
Frequently Asked Questions About Boxelder Bugs Extermination
Do boxelder bugs bite?
Nope. They don’t bite or sting. They’re just annoying to have around.
Will they damage my home?
Not directly. But they can stain walls, furniture, and curtains with their droppings or if crushed.
Can I get rid of them for good?
You can reduce them dramatically with proper sealing and treatment. Total elimination may take ongoing seasonal prevention.
Final Thought
Boxelder bugs might not seem like a big deal at first but when they take over your walls, windows, and ceilings, they’re hard to ignore. The key is to catch the problem early and treat it right.
Book a local insect exterminator near you before these bugs turn into a year-round problem you can’t shake.
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