Cutter Backyard Bug Control outdoor fogger repels and kills mosquitoes, flies, gnats, ants and other insects on contact and for up to 4 weeks. The water-based formula continues working even after it rains. Prepare for your next outdoor event with this fast-acting bug killer and repellent. Kills mosquitoes, flies, gnats, wasps and other listed flying insects on contact Quick-action formula: allow a few minutes after spraying to take full effect before re-entering the area Ready-to-use with no dilution needed, and can be reapplied daily if required