The answer to 'why is my stink bug trails' is that stink bugs often leave behind visible trails or markings as they move around your home. These trails are caused by the stink bugs releasing pheromones, which are chemical signals that help them communicate and mark their territory.
Stink bug trails can appear as dark, smudgy lines or streaks, often seen on walls, windows, or other surfaces. The trails are usually more noticeable in areas where stink bugs are active and congregating. While the trails themselves are not harmful, they can be a nuisance and indicate an active stink bug infestation in your home.