Harris Lady Bug killer is the bomb for these things, spray around your windows and doors and any where else they can get in or like to bunch up. They'll be gone in a three or four days. It got so bad here last year that you couldn't eat a bowl of cereal without one falling in. We sprayed and the carcasses started piling up within a couple of hours. So far we have been bug free this year. It does a number on the stink bugs too.
Forgot I got some of this last year. Dug it out and started spraying the house. Noticed a difference within a day or so. This stuff is gold!
.......And guess where they come from.....CHINA!! The good 'ole USDA brought them in to control Aphids on Pecan Trees, and they weren't suppose to get out-of-control!! I found that Demon wettable powder, (mix in distilled water); is the best insecticide for these Beetles. Spray around all your doors, windows, and plug-up all little holes around your home.
I heard they can bite you...but I swear, I'm not sure I could tell the difference between a China bug and a good ol' USA lady bug.
About time to pull out the big gun: shark cordless. It's about to be on. Just so you know those hardy some beeches can live a week in bleach water.
I mixed up a hand prayer with generic admire and sprayed the outside of my house yesterday. Admire has the same ingredients as Temprid FX . I also spray my dogs about once a month to keep the fleas away . It does work on fleas. I had several stink bugs and some spiders . I hope they are dead now.