Why Stink Bugs Crowd Baltimore Homes in Fall and Where They Get In

Stinkbug on a green leaf
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Stink bugs crowd Baltimore homes in fall because adults look for a protected winter shelter and warm, sunny walls are where they arrive first. Rowhomes and suburban houses both have four weak spots they use: window frames and air conditioners, the roofline, pipe and utility openings, and door gaps. Our overview of common summer pests in Baltimore notes that stink bugs show up across the Baltimore suburbs the same way they do throughout the region.

Four Entry Zones to Check on Any Baltimore Home

1Windows and air conditioners
Gaps around window frames and window air conditioners are easy entry routes. Washington State University Extension specifically lists air conditioners among the places to seal.
2Roofline, soffits, and fascia
Attics are common overwintering sites for large numbers of adults, so the roofline matters. Check soffit panels, vents, and the wood fascia for gaps.
3Pipes and utility openings
Seal gaps where pipes, wires, and cables enter the building, inside and out.
4Doors and thresholds
Worn weatherstripping and open gaps under doors let stink bugs walk straight in. Fit tight sweeps.

Myth: Crushing Them Is the Quickest Fix

Crushing a stink bug releases the odor and can leave a stain. Vacuuming or sweeping them into a bag and discarding it outdoors removes them without the smell. Hosing bugs off exterior walls also works, per University of Missouri Extension.

Rowhomes and Detached Homes Need Different Checks

Rowhomes concentrate the risk at the front and rear windows and the roofline cornice, since interior units have no exposed side walls. Detached homes in Baltimore County add chimneys, garage doors, and soffits on every side. Either way, a seasonal visit that treats the foundation and eaves supports the sealing. Frontline Pest Control includes four seasonal treatments a year and complimentary service calls between visits.

Common Questions About Stink Bugs in Baltimore Homes

Where do stink bugs spend the winter in a home?

Attics are common overwintering sites, according to Washington State University Extension. The bugs can wake and wander into living spaces on warm days in winter and spring.

Are stink bugs dangerous to my family?

No. Utah State University Extension lists the brown marmorated stink bug as not a health threat, and they do not bite. They only produce an odor when crushed.

Is a seasonal plan worth it for a rowhome?

A rowhome has fewer exterior walls, so sealing the front, rear, and roofline does most of the work. A seasonal visit adds a perimeter treatment and a check of the weak spots.

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.

Seeing stink bugs gather on the front of the house? Call Frontline Pest Control at 443-884-5581 and we'll help you figure out the right next step.

Close the Four Weak Spots

We check every zone on your home, whether it is a rowhome or a detached house.
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