I think someone may have mentioned this already, but.... I have had these pests around three different places that I've lived over the past 10 years and could never get rid of them...UNTIL...I tried the dish soap and water idea. I grabbed my 2.5 gallon sprayer, put water in it and added about 2 ounces of dish soap. I was told to use Dawn. Didn't have any but had some Amway Dish Drops. Shook it up pumped and sprayed...what a blast. it WILL kill them quickly!!!! I had thousands down. came back later, more were out. Killed them. Did this for a few days and there were next to nothing after a while. This spring, a few came back and I knocked them out. NO, they do not come back to life like my wife thought, because the body count at the base of the house was piling up. I don't know how much soap it really needs, maybe only one ounce per 2 gallons, don't know, but it's not expensive to use and it works great so I didn't really care to measure. i also sprayed pine trees with it that had the critters all over. The one thing it doesn't do, is continue killing after yiou spray. You have to spray them with it to kill them.....Have fun!!!!!!!!!!!!!