Crossfire Bed Bug Concentrate is a liquid, water-based insecticide that, with its distinctive combination of active ingredients, controls the bed bug population, especially pyrethroid-resistant bed bug strains, wherever it is sprayed. This bed bug spray kills within 5 minutes of contact and lasts for up to 30 days after application. This non-staining product is designed to kill all of the different life stages of bed bugs, from eggs to adults, while producing no visible residue or staining. Easy to mix and measure-- just add 13 oz. of the non-repellent concentrate to 115 oz. of water, then spray the 1 gallon mixture on the target area.