Offers ongoing, effective control of house flies, with no known resistance. As the only bait in the new spinosyn class, Elector Bait works differently it has a unique, delayed mode of action that kills house flies after they have eaten and left the bait area, keeping the product clean and available for optimal performance. Plus, Elector Bait granules are bright yellow, which is highly attractive to flies.  Elector Bait is ready to use and available in both 5-pound and 40-pound containers.