This concentrated fly spray provides an economical way to protect horses and stable areas from biting and nuisance insects. Simply mix with water to create a ready to use spray with each pint of concentrate making one gallon of finished product. The water based formula repels and kills horn flies house flies stable flies horse flies deer flies gnats mosquitoes and ticks including deer ticks. It offers dependable insect control for horses while helping you save money with an easy to mix concentrated formula.