TRI-TEC 14 FARNAM (600 ML)Tri tec 14 insect repellent spray, effective against flies, gnats, horseflies, mosquitoes and ticks. Tri Tec 14 is a special horse insect repellent that repels flies, horseflies and other ectoparasites for up to 14 days after application. The activity of Tri Tec 14 is guaranteed by its composition that combines the immediate action of natural pyrethrins (extracted from the flowers of Chrysanthemum cinerariaefolium) with the more prolonged action of