But with the coming of Fall, they've transformed their menace from a business to a personal one.
"It's never ending," says Brewer, clutching a plastic bag full of the stink bugs, which he's captured and now suffocating. "You'll trap or you'll capture or smack them with a fly swatter, 20 to 30 times in one day. Then, there'll be that many more even within an hour. I take it personally and I try to catch as many as I can, but it hardly seems to put a dent in them."
As a result, Brewer's porch is largely out of commission, due to the unpleasant aroma which he insists the bugs emit, even if he does not squash them. So what is there to do?
Well, some people don't find the smell that bad.
"Stinky is as stinky does. Stinky is a relative thing," Raupp says. "I don't find them unpleasant, but a lot do. Some people say they smell like cilantro. Then, I say, put some salt on them."
In fact, in some countries like Laos, the bugs are eaten and even considered a delicacy because of their pungent smell. But, if that's not exactly your taste, there is this bright side to look at:
The stink bugs are not harmful to you, your children or your possessions. They have not been known to carry diseases. They're merely going to seek shelter in your home and, occasionally, make the place smell really bad.
"You're never going to beat Mother Nature," Raupp says. "Bet on the bugs. The bugs have the answer. They've been at this thing for 6 million years. People don't have to freak out. It's not a plague, even though they're showing up in biblical numbers."