I Dilute it with water. I would not have a precise measurement. Soak the suckers inside of a puddle of the mixture. They die! Spray them if they are on the wall and every time they drop to the floor, spray by covering them having a puddle. Reply Katrina Sep. https://fernandora8d9.blogoxo.com/31625955/not-known-factual-statements-about-how-to-spray-pesticides-in-arar