Say goodbye to pesky flies with Farnam Endure Gold Killer Horse Fly Spray. This high-performance fly spray is specially designed to provide comprehensive insect control in even the most demanding conditions. With six active ingredients, this advanced formula offers rapid knockdown of flies. It effectively repels and kills a wide range of flies, including stable flies, horse flies, face flies, deer flies, house flies, and horn flies. Plus, it also works as a gnat spray, mosquito spray, and horse tick repellent, protecting your horse from ticks that may transmit Lyme disease. This sweat-resistant spray provides up to 14 days of reliable fly control, making it the perfect choice for horses who are turned out.