Why do stink bugs prefer some houses over others?

Asked September 11, 2013, 12:29 PM EDT

Why are stink bugs on one house more than the other houses in a neighborhood?

Maryland

1 Response

We don't have an authoritative answer, except to say that in their natural habitat, stink bugs seek out a southern facing hillside that reflects heat over other places for overwintering shelter. They prefer rocky hillsides. If one stink bug finds a suitable place, that bug emits a pheromone which will attract other stink bugs to the same place.
Some neighborhoods have more stink bugs than others. Sometimes, those homes that are extremely attractive will have thousands of stink bugs overwintering in the attic or some other sheltered location. It is probably because of the color of the house, or the material or siding on the house. Perhaps it is the roof that is attractive.
LS