cAs the most advanced insecticide and repellent Absorbine offers, UltraShield EX trigger fly spray for horses delivers proven fly control that horse owners like you have counted on for decades. UltraShield EX Insecticide & Repellent can also function as a premise spray-an important part of your overall fly control strategy. Premise sprays are commonly used to kill biting and nuisance flies, as well as crawling species such as deer ticks and carpenter ants on surfaces inside your barn. | Absorbine UltraShield EX Insecticide Repellent Trigger Spray | Size 32 oz