where do stink bugs come from

Stink bugs primarily come from Eastern Asia, including countries such as China, Japan, Korea, and Taiwan. The brown marmorated stink bug, the most common invasive species in the U.S., was first documented in Pennsylvania in 1998. It is believed to have arrived accidentally in shipping containers from Asia in the late 1990s. Since its introduction, this species has spread across many states in the U.S. Stink bugs typically seek shelter indoors during colder months to hibernate, which is why they often appear inside homes during fall and winter. They are attracted to warm, protected places and can enter buildings through small openings. Once inside, they release a pheromone that attracts other stink bugs, potentially causing large infestations.