Springtime Bug Off Garlic Granules for Horses - 5 lb. - Air-Dried Garlic granules Provide a Safe, 24-Hour Shield Against Flies, Ticks, Mosquitoes, gnats, and Other Biting Insects. Provides a 24-hour shield against flies, ticks, mosquitoes, gnats, etc No "spray on" hassles Safe, effective alternative to chemical products Promotes friendly bacteria in the digestive tract (prebiotic) Great source of dietary sulfur, including MSM and supports a healthy immune sytsem