Folithion 500 EC is a contact, stomach and ingestion insecticide to control mosquito (Culex quinquefasciatus) and house fly (Musca domestica).  Fenitrothion as an active ingredient of Folithion 500 EC  is a compound that belong to organophosphate insecticide group.  Folithion 500 EC is very effective for controlling mosquitoes, flies, and also for anti resistant management on storage pest control such as Tribolium castaneum on wheat whenever it?s already resist with pyrethroid insecticides