Equisect 32 Fl Oz Fly Repellent Spray For Horses Ponies Dogs and Cats Water Based Alcohol Free Formula Proven in studies to outperform other leading natural fly sprays The only equine fly spray listed by the Organic Materials Review Institute Contains PyGanic, a botanical repellent derived from chrysanthemum flowers Official fly control product of the USEF Also kills fleas and ticks on dogs and cats!