What Attracts Stink Bugs To Your Home

Stink Bugs in Your Home: What Attracts Them and How to Get Rid of Them

If you've noticed more stink bugs in your SC or NC home lately, you're not imagining it. The invasive brown marmorated stink bug first showed up in the Carolinas around 2009, and it's been spreading steadily since – from Asheville and Charlotte down through Greenville and Spartanburg and into communities across the Upstate. What started as a nuisance in a handful of western NC counties has become a fall reality for homeowners across most of both states. Here's what draws them in, how to tell them apart from harmless native species, and why vacuuming, not spraying, is the right call once they're already inside.

Key Takeaways:

• Stink bugs are drawn to warmth and light in fall as temperatures drop – your home is essentially their target overwintering site.
• The brown marmorated stink bug is the invasive species behind most home-invasion complaints in the Carolinas; native species like the green stink bug are largely outdoor agricultural pests.
• Stink bugs do not bite, sting, or transmit disease. They're a nuisance pest, not a health risk.
• Do not spray an active indoor infestation as dead stink bugs in attics and wall voids attract secondary pests and smell bad; vacuuming is the right approach.

What Attracts Stink Bugs to Your Home

Stink bugs aren't looking for your food or your water, they're looking for warmth. As temperatures drop in early fall, brown marmorated stink bugs begin searching for a protected place to spend the winter. Your home is exactly what they're after.

A few specific things draw them in:

• Light – stink bugs are attracted to light sources, which is why they often congregate around windows, doors, and porch lights in the evening
• Warmth – the heat radiating from your home's exterior on a cool fall day is enough to pull them in
• Entry points – roofline gaps, torn screens, cracks around windows and doors, and unsealed utility penetrations are the access points they use; openings around the roofline are particularly common entry points

Once inside, they make their way into attics and wall voids where they stay dormant through the winter. They don't feed or reproduce indoors – they're just waiting out the cold.

Types of Stink Bugs: Invasive vs. Native

Not every stink bug you encounter is the same, and the distinction matters.

Brown Marmorated Stink Bug (BMSB)
This is the invasive species responsible for almost every "stink bugs swarming my house" complaint in the Carolinas. Originally from Asia, it arrived in the U.S. in the late 1990s and has been spreading steadily since. It's brown and shield-shaped, roughly ¾ of an inch long, with alternating light and dark bands on the edges of its abdomen. This is the species that overwinters in homes in large numbers.

Native Species (Green Stink Bug and Others)
Several native stink bug species exist in SC and NC, including the green stink bug. These are primarily outdoor pests that feed on crops, fruits, and garden plants. They don't typically swarm into homes the way BMSB does. If you're finding large numbers of stink bugs inside your house in fall, it's almost certainly the brown marmorated species.

Stink Bugs in the Carolinas: A Fast-Growing Problem

The brown marmorated stink bug was first detected in North Carolina in Forsyth County near Winston-Salem in 2009. Since then its spread has been significant – NC State Extension confirms the species is now present in 80 of the state's 100 counties as of February 2025.

In South Carolina, BMSB arrived around 2011 and has spread statewide. Clemson University entomologists have documented a particularly notable population surge in South Carolina's Upstate, the same general area as much of Terminix Service, Inc.'s SC service territory, linking the heavier activity there to longer, warmer falls that give the bugs more time to feed and reproduce before they begin seeking shelter for winter.

For homeowners in both states, this means stink bug pressure has grown meaningfully over the past decade and a half, and it's not a problem unique to a few homes or neighborhoods anymore.

Do Stink Bugs Bite?

No. Stink bugs are not a health risk. Their mouthparts are designed for piercing plant tissue, not skin, and they don't bite, sting, or transmit disease. The only real downside of a stink bug, beyond the nuisance of having them in the house, is the odor they release when disturbed or crushed. The smell is their defense mechanism, not a danger.

How to Get Rid of Stink Bugs (Without Making It Worse)

The instinct when you have a large number of stink bugs inside is to reach for a spray. This is worth resisting, and here's the specific reason why: treating an active indoor infestation with pesticide kills large numbers of stink bugs in your attic and wall voids where you can't reach them. Dead stink bugs in walls decompose, smell bad, and attract secondary pests like carpet beetles that feed on the carcasses.

The better approach, as Kevin Hathorne explains in detail in the Ask the Entomologist series:

• Vacuum them as they emerge – stink bugs don't all come out at once but gradually over a couple of weeks in spring as temperatures rise; vacuum them as they appear and dispose of the bag immediately, or drown collected bugs in soapy water
• Don't crush them – crushing releases the defensive odor; the vacuum avoids this
• After they've fully emerged – use the window between late spring and early fall to seal the entry points they used: repair damaged areas around the roofline, seal cracks and gaps, secure eave and gable vents, and have your attic treated with an insecticidal dust by a pest professional as a preventative measure for the following fall
• Communicate with your technician – let your Terminix Service, Inc. professional know stink bugs have been a problem so a preventative fall treatment can be scheduled before they try to come back inside

One Season of Stink Bugs Is Enough

Stink bugs are manageable, but sealing entry points and getting professional preventative treatment in the attic before fall is what stops the same problem from repeating year after year. Terminix Service, Inc. has been protecting SC and western NC homes for over 75 years. Your inspection is free, your technician is local, and your results are guaranteed. Request yours today.

Written By Trevor Knox

Trevor Knox is the Vice President of Sales and Marketing at Terminix Service, Inc., one of the largest and most respected pest control companies in the Southeast. With nearly a decade of experience spanning field operations, branch management, and executive leadership, Trevor brings a deep, practical understanding of both the business and service sides of the industry. A “20 Under 40” honoree and active leader in professional development and community initiatives, Trevor’s insights reflect real-world expertise and strategic vision—making his perspective one worth listening to.

View all posts by Trevor Knox