Gold Label Flygon LA Spray is a special long acting insect repellent for amateur use against crawling and flying insects by direct application to the horse's coat. Gold Label Flygon LA Spray Contains: CITRIODIOL 0.8% w/w. This insect repellent is in a special long acting base for amateur use against crawling and flying insects, by direct application to the coat. Gold Label - Flygon LA is an insect repellent from Gold Label, made from a special long acting base that's ideal for amateur use against crawling and flying insects when sprayed directly onto horse/pony coats.