Stink bugs come into houses primarily to seek shelter and warmth as the weather gets colder, especially in the fall. They look for cozy places inside homes to overwinter during the cold months because outdoor food sources become scarce and their metabolism slows down in a dormant state called diapause. They enter through cracks, gaps, and crevices in walls, windows, doors, and other openings. Additionally, they are attracted to light and nearby food sources like fruit, vegetables, and plants. Once a stink bug finds a suitable indoor location, it can release pheromones that attract more stink bugs to the same spot. In summary:
- Stink bugs seek warm shelter for overwintering as temperatures drop.
- They enter homes through small openings around doors, windows, and vents.
- They are attracted to lights and food sources near homes.
- Pheromones released by stink bugs attract others to congregate indoors.
They do not bite humans or pets, nor do they cause structural damage or eat indoor food. Their main nuisance is the unpleasant odor they release when threatened or squashed.