The answer to 'why is my stink bug swarms' is that stink bugs are often attracted to homes in the fall as they seek warm places to overwinter. Stink bug populations can explode when the weather starts to cool, leading to large swarms around homes and buildings. This is a common problem that many homeowners face, especially in areas with high stink bug populations.
Stink bugs are drawn to homes for several reasons - they are seeking shelter from the cold, food sources like fruits and vegetables, and suitable overwintering sites. As they congregate around homes, they can become a nuisance, releasing their foul-smelling odor when disturbed. While stink bugs don't cause structural damage, their presence can be unpleasant and their numbers can grow rapidly if not addressed.