Stink bugs, recognized by their shield-shaped bodies, are a common sight around homes. These insects, named for the unpleasant odor they release when disturbed or crushed, are more than just a nuisance. Understanding their seasonal patterns can help people anticipate their appearance and take appropriate measures.
Peak Stink Bug Activity
Stink bug activity increases from late summer through fall. As temperatures begin to cool, stink bugs become active around homes. While present year-round, their indoor presence becomes more pronounced as they seek shelter from changing weather.
Stink bugs often congregate on sunny building sides, absorbing warmth. This behavior precedes their search for overwintering sites. Timing and intensity vary with local climate and temperature.
The Drive to Overwinter
Stink bugs enter homes to overwinter. As days shorten and temperatures drop in the fall, stink bugs seek sheltered locations to enter a dormant state known as diapause. During diapause, their metabolism slows, and they do not feed or reproduce.
Homes offer an ideal environment for this overwintering period due to their warmth, dryness, and protection. Stink bugs are attracted to light and warmth, drawing them towards structures. They remain in this inactive state throughout winter, emerging in spring when rising temperatures and longer days signal the end of dormancy.
Dealing with Stink Bugs Inside Your Home
Once stink bugs have entered a home, managing their presence focuses on removal and prevention. Avoid crushing them, as this releases their unpleasant odor. This smell can linger and may even attract more stink bugs.
Effective removal methods include using a vacuum cleaner, ensuring to empty the bag or canister outdoors immediately to contain the smell. Another common technique involves filling a jar or pan with soapy water and holding it beneath the bug, as they tend to drop when disturbed. The soap in the water prevents them from escaping. Light traps, made by placing a dish of soapy water under a light source in a dark room, can also attract and drown them.
Preventing their entry is the most effective long-term strategy. This involves sealing cracks and gaps around windows, doors, foundations, utility pipes, and under siding with caulk or weather stripping. Repairing damaged window screens and ensuring tight-fitting door sweeps are also important steps to block entry points.