No mercy for ticks and more! Farnam knows that horse fly control, tick control and insect control for your pastured horses can be a challenge, we get you and we got your back! Equi-Spot Spot-On Fly Control for Horses is Farnam's best choice for pastured horses that are not able to be regularly sprayed with a horse fly repellent spray, including mares and foals. Here's how it works! Just one easy application of Equi-Spot every two weeks, lasts up to two weeks (that's right, protection lasts for up to 14 days!) Equi-Spot delivers long-lasting protection against biting flies, bloodsucking gnats, dangerous ticks that can carry Lyme disease, mosquitoes that may transmit West Nile Virus and flies that may cause Summer Sores. That's a lot of protection and peace of mind for you and your horses! Equi-Spot fly, tick and mosquito protection won't wash off in the rain or when your horse sweats. Choose between a 6-week supply (green box with 3 applications) or a 12-week supply (blue box with 6 applications). Bugs don't fly with Farnam, your partner in horse care.