Brown Marmorated Stink Bugs have become a common concern for homeowners, particularly as cooler weather approaches. These insects frequently seek refuge inside structures during the fall season. Many people wonder if these bugs are attracted to light, especially when trying to prevent their entry into homes.
The Role of Light in Stink Bug Behavior
Stink bugs exhibit positive phototaxis, meaning they are drawn towards light sources. This attraction is especially noticeable with artificial lights at night, which they may interpret as natural navigational cues like the moon. Their movement towards light guides them to illuminated areas.
This light-seeking behavior intensifies during late summer and fall. Brown marmorated stink bugs actively search for suitable overwintering sites to escape cold temperatures. Bright exterior lights, such as porch lights or floodlights, can guide them directly to a home. The illumination acts as a beacon, directing these insects to potential entry points.
Other Factors That Attract Stink Bugs
Beyond light, stink bugs are also drawn to warmth. As temperatures drop, these insects seek insulated environments to survive the cold months, a process known as overwintering. Buildings radiate heat, making them appealing shelters.
Homes with numerous cracks and crevices also present inviting targets. These small openings around windows, doors, utility pipes, and foundations offer easy access points for the insects to slip indoors. The combination of warmth and readily available entryways makes a home an attractive destination for overwintering stink bugs.
Managing Stink Bugs Near Your Home
To manage stink bug populations near your home, focus on preventative measures to block their entry. Seal any cracks or gaps around window frames, door jambs, and the foundation using caulk or weatherstripping. Pay attention to openings where utility lines or pipes enter the house, as these can also serve as access points.
Adjusting your exterior lighting can also help reduce attraction. Consider replacing standard white bulbs with yellow bug lights or sodium vapor lamps, which emit light in wavelengths less appealing to many insects, including stink bugs. For simple removal, use a vacuum cleaner to collect individual bugs or sweep them into a container of soapy water, which will eliminate them without releasing their characteristic odor. Avoid crushing them, as this can release their unpleasant scent.