On another thread I mentioned this. Fill up a spray bottle with water and add about a tablespoon of Dawn dish soap detergent. You now have a lethal bug killer. I use it to kill ants, house fly's, slugs, gnats, waspers, stink bugs, blister beetles, horn worms, and a few other types of bugs. Why it works is cause the dish detergent removes the protective oily film on bugs and either drowns them or leaves them susceptible (spelling!) to diseases that will kill them. Also, very safe to use in your home, your yard, and your garden. It doesn't keep bugs away but kills what you see.