Stink bugs found indoors are often seeking shelter rather than breeding in furniture or pantry food. Exclusion before seasonal entry is the highest-value control.
Inspect the exterior shell
Seal gaps around windows, utility penetrations, siding, and trim; repair screens and weatherstripping. Sunny walls can be congregation points before insects move into cracks.
Remove indoor bugs without crushing them
The defensive odor is why they are called stink bugs. Vacuum them with equipment you can empty promptly, or capture them in a container.
Sheltering stink bugs usually do not damage the structure
The main problem is nuisance and odor when handled. That does not justify broad spraying of bedrooms and living spaces.
Activity can spike with temperature changes
Warm winter days may wake insects hidden in wall or attic voids and draw them toward windows. That does not necessarily mean they are reproducing indoors.
If hundreds enter every year
An exterior inspection may reveal gaps that indoor cleanup can never solve. Prioritize sealing and building maintenance before chemical treatment.
The practical strategy is exclusion, careful removal, and patience with occasional insects that emerge from hidden winter shelter.
Sources
- U.S. Environmental Protection Agency — Brown Marmorated Stink Bug — Stink-bug entry, exclusion, indoor handling, and integrated pest management.