This guy is a real pain, the Brown Marmorated Stink Bug. The video below will give you some ideas for dealing with them, but they are becoming a big problem. I had a hundred of these guys in my upstairs bathroom hiding behind a mirror.
I saw one or two the night before and when I went up in the morning there weren't any, that's when I turned the mirror around and saw the infestation.
They don't bite or mean us harm, but when alarmed they secrete a liquid that smells. That scent brings others so don't crush them on the windowsill.
The bugs were coming in through a loose screen at my house, so I closed the windows and looked for any cracks that needed caulking.
This stink bug showed up about 10 years ago, it's an invasive and wreaked havoc in gardens this year. They are a sucking insect, so the organic control is Neem and diatomaceous earth. The Neem is sprayed on plants, and then the stink bug ingests the organic pesticide and dies. The diatomaceous earth is a powder sprinkled around where you see the bug. When it crawls over it, the insect gets the powder all over and then dies through dehydration. What a way to go!
One interesting thing that my radio partner Jessica Walliser observed was that her chickens enjoyed eating them. Hopefully wild birds will find a taste for them too.
As we learn more about this pest, organic controls should become more plentiful.