Insects invading your corner of the world? Whatever insect you're fighting, Black Flag products are dedicated to providing the tools you need to regain control. With formulas that act fast and never back down, Black Flag insect controls have been arming homeowners in the battle against invading bugs for more years than any other brand. Flies and other flying insects can be a real aggravation when they invade your home, porch, patio or garden. Black Flag Fly Paper traps houseflies, mosquitoes and other annoying flying pests anywhere flying insects are a nuisance, both indoors and outdoors.