I found your web page while looking up information on stink bugs. I moved into a 14 year old house last November. In the spring I washed the windows and sills. (Crank out windows) When I opened the windows, lots of dried grass was in between the window and the frame. I opened a window this week (had not been open for 2 to 3
weeks) and lots of grass dropped from above. I looked up and there was a brown stink bug. Are they nesting in between the windows? How can I discourage this? Thanks for your assistance.
Although stinkbugs can get into the house and occasionally become pests, they will not make nests of any form when they are there. They grass came from some other source, maybe mice or just the wind.