A: Drain flies, sink flies, moth flies, or sewer gnats (Psychodidae) are small true flies (Diptera) with hairy bodies and wings; one of their common names, moth flies.There are more than 4,700 known species. The adults live for approximately 20 days, during which they will breed only once, often within hours of emerging from their pupal casings. Females will lay their eggs (between 30 and 100) just above the water line inside moist drains. Removing the breeding site is the most important part of a drain fly control program.
A: No. They are water-based liquid concentrates which are easy to handle, mix and use. The active ingredient is Strike® liquids is active only against insects and is one of the most environmentally compatible insect control products on the market