The answer to 'stink bug trails' is that stink bug trails are typically caused by the presence of stink bugs in your home. Stink bugs leave a trail of pheromones as they crawl, which can attract more stink bugs to the area. Common signs of stink bug trails include small, dark spots or streaks on walls, furniture, or other surfaces.
To address stink bug trails, the best solution is to focus on eliminating the stink bugs themselves. This can be done through a combination of DIY methods, such as using insecticidal sprays or traps, as well as sealing up entry points around your home. However, for a severe stink bug infestation, it's best to call in a professional pest control technician who can use more effective treatments and methods to get rid of the problem.