Archer IGR Archer Insect Growth Regulator is photostable for up to 14 days, delivering effective residual control of outdoor pests such as fleas and cockroaches, even in areas with direct sunlight. Archer Insect Growth Regulator can be used as part of an integrated pest management (IPM) program, in combination with other insecticides or alone, and as an aid to prevent the development of insecticide resistance. Archer Insect Growth Regulator does not cause stain or odor when used as directed. When used as directed, Archer Insect Growth Regulator retains activity against pre-adult fleas for up to 7 months, and against pre-adult cockroaches for up to 6 months Reduces egg production in house flies and prevents larval development into adults.