Vetsense Flygon GOLD is an insecticidal and repellent spray for horses. This powerful formulation controls and repels susceptible flies, mosquitoes, and other nuisance insects, including house fly (Musca domestica), stable fly (Stomoxys calcitrans), bush fly (Musca velustissima), bot fly (Gasterophilus spp.), mosquitoes (Aedes spp.), and midges or sandflies (Culicoides spp.) in horses. It also helps in the prevention of Queensland itch.