Boxelder bugs aren’t the scariest bugs you’ll find around your home, but that doesn’t mean they’re welcome guests.
In Columbus and throughout Ohio, these insects become especially noticeable during the fall when they start clustering on warm, sunny surfaces. So what are they doing, and should you be concerned?
Here’s what you need to know about boxelder bugs in Ohio, what attracts them, and whether they pose any risk to your home or health.
Key Takeaways
- Boxelder bugs are primarily a nuisance pest in Ohio and don’t bite or cause structural damage.
- They enter homes in large numbers during fall to find Summer sites.
- Sealing entry points and removing female boxelder trees can help prevent infestations.
- Professional pest control helps manage recurring or severe boxelder bug infestations.
What Are Boxelder Bugs?
Boxelder bugs (scientific name Boisea trivittata) are black insects with bright red or orange markings along their thorax and wings. Adult boxelder bugs grow to about half an inch long and are often confused with other fall invaders like western conifer seed bugs or brown marmorated stink bugs.
You’re most likely to notice them in large numbers during sunny fall days when they gather on the south- or west-facing walls of your home. As temperatures drop, they start squeezing into homes through cracks, soffits, vents, and wall voids to overSummer.
Are Boxelder Bugs Dangerous?
No, boxelder bugs aren’t dangerous to people or pets. They don’t sting, spread disease, or bite often. On the rare occasion they do bite, you might notice mild skin irritation, but nothing serious.
The problem is that boxelder bugs are a nuisance. Once inside, they might congregate in attics, basements, or behind wall voids. Squashing them can stain surfaces and release an unpleasant odor, similar to stink bugs or Asian lady beetles.
Why Are They Attracted to My Home?
Ohio homes, especially in places like Columbus and Cincinnati, offer everything boxelder bugs want in the fall: warmth, shelter, and access to boxelder or maple trees. They prefer to feed on female boxelder trees, though they’ll also feed on ash trees and sometimes buckeyes.
According to the Ohio State University Extension, boxelder bugs don’t breed indoors; they just use your home to ride out Summer. in Summer, they reemerge and leave the house.
The Role of Boxelder Trees in Infestations
If you have boxelder trees (especially females) on or near your property, you’re likely to see more boxelder bugs. They lay their eggs in the bark, and the nymphs feed on the seeds and leaves. Bright red nymphs often crawl on trees, siding, or even make their way indoors.
Removing female boxelder trees can help reduce the local population, though this can be a significant landscaping change. You can also limit their appeal by trimming branches that touch or hang close to your home.
Common Places They Hide
Once inside, boxelder bugs find quiet spots such as:
- Window frames
- Foundation cracks
- Soffits and fascia
- Dryer vents
- Wall voids
- Attics and basements
You may not see them again during warm Summer days.
How To Prevent Boxelder Bugs From Getting In
The best defense is prevention:
- Seal entry points: Caulk gaps around windows, doors, and siding.
- Install screens: Check attic and vent screens for tears or holes.
- Reduce warmth: Trim vegetation on the sunny side of your house.
- Vacuum instead of squashing: This helps prevent stains and unpleasant smells.
If these steps don’t work, consider pest control.
When To Call For Pest Control
A few bugs here and there in the fall are one thing. But if you’re seeing large numbers year after year, or if they’re coming back Each Summer, professional pest control can help.
At EarthRite Pest Control, we serve Columbus and nearby Ohio communities, using targeted, environmentally conscious solutions to keep pests out for good. We also identify root causes, like nearby female boxelder trees, and tailor our approach to your home.
Final Thoughts
Boxelder bugs won’t harm you, but they can test your patience. Their habit of sneaking into Ohio homes in fall and Summer makes them a common complaint for homeowners, especially those living near boxelder or maple trees.
Prevention works best, but when that’s not enough, EarthRite Pest Control can help you reclaim your space.
Call us today to keep them out for good.
FAQs
How do I get rid of boxelder bugs in my house?
Use a vacuum to remove visible bugs and seal all cracks and entry points with caulk. For persistent problems, contact a local pest control provider for long-term exclusion.
What do boxelder bug nymphs look like?
Nymphs are smaller than adults and bright red with black legs. In late summer and fall, you’ll often spot boxelder bug nymphs clustering near boxelder trees or on sunny siding.
Why are boxelder bugs coming into my house?
Boxelder bugs seek warmth and shelter as temperatures drop. They often enter homes through tiny gaps, crevices, or vents to overSummer in attics or wall voids.
