What to Expect From Stink Bug Season in Nashville This Fall
Stink bug season in Nashville starts in early fall, when brown marmorated stink bugs leave plants and gather on sunny walls looking for a protected place to spend the winter. University of Tennessee Extension describes the brown marmorated stink bug as a common fall nuisance for homeowners in the state. The bugs do not bite or harm people, but sealing entry points before they gather is the step that keeps them from moving in.
Why Stink Bugs Show Up on Nashville Walls in Fall
Heavy flights come on sunny days that follow cool days, according to University of Missouri Extension. Adults land on warm walls and crawl into cracks around windows, doors, siding, and pipes to overwinter. A house that faces the afternoon sun tends to collect the most.
How to Tell a Brown Marmorated Stink Bug From a Helpful Look-Alike
Several native bugs look similar at a glance. University of Tennessee Extension separates the invasive species from natives such as the brown stink bug, dusky stink bug, and spined soldier bug by the alternating bands on its body. Banding is the quickest check.
| Feature | Brown marmorated stink bug | Spined soldier bug |
|---|---|---|
| Antennae | Alternating white and black bands | Plain, without white bands |
| Shoulders | Smooth and rounded, no spines | Sharp points on each shoulder |
| Role | Feeds on plants and gathers on homes in fall | Hunts other insects and helps in gardens |
Myth: Stink Bugs Are Dangerous or Will Damage the House
Utah State University Extension lists the brown marmorated stink bug as not a health threat, and Missouri Extension notes the bugs do not bite people or pets. Stink bugs do not eat the structure and do not breed indoors. The nuisance is the crowd and the odor, not the damage.
What Works in Nashville Homes
Seal the gaps in fall before the bugs gather, using a quality silicone-latex caulk around windows, doors, siding, utility pipes, and fascia. Vacuum any bugs that get inside and empty the bag outdoors. Our general prevention guide covers the rest of the exterior routine, and our overview of common summer pests in the Nashville area covers the other pests homeowners deal with each year.
Common Questions About Stink Bugs in Nashville
When do stink bugs start coming indoors?
Adults begin searching for overwintering sites in late September and October, per Virginia Cooperative Extension. The heaviest flights follow cool days with a sunny afternoon.
Do stink bugs bite or harm pets?
No. Missouri Extension notes that brown marmorated stink bugs do not bite people or pets. They release an unpleasant odor when crushed, so sweeping or vacuuming works better than stepping on them.
Should I use a bug bomb to clear them out?
No. Washington State University Extension advises against foggers because bugs killed inside wall voids give off an odor and can attract carpet beetles. Sealing and vacuuming work better.
Does pest control cover stink bugs?
Frontline Pest Control's seasonal service treats the foundation, eaves, and yard, and a technician can confirm how stink bugs fit your plan at your address. Sealing entry points remains the most effective step.
Not sure whether the bugs on your wall are stink bugs or something helpful? Call Frontline Pest Control at 443-330-2079 and we'll help you figure out the right next step.