Kim from West Chester writes
For drains, apply Gentrol Aerosol IGR into and around the downspout and catch basin area. Coat these areas thoroughly as fly larva develop in the scum buildup on the sides of drain pipes. Repeat applications at 2 to 4 week intervals depending upon the severity of infestation. Please provide the targeted pest for further information on treatment.
Answer last updated on: 08/27/2018