Best Use: Kill listed common household insects when you see them. Also spray where insects hide to control infestations before they start.Benefits: Kills insects on contact! Protects treated areas for up to three months. Kills German Cockroaches up to 10 on non-porous surfaces. When insects cross a treated area they will pick up enough Black Flag to die. Use indoors. Available in Fragrance Free Fresh Pine and Spring Fresh fragrances.Use Tips: Spray directly on insects when you see them. Spray in cracks and crevices and in moist dark places where insects live and breed. For ants in the house spray trails directly then wipe up dead ants with paper towels. It"s important to find where ants enter the home and treat the area thoroughly. If practical use caulk or expanding foam to seal points where ants enter the home.