Y-Tex GardStar Plus cattle insecticide ear tags contain 10 permethrin. Approved for use on beef and dairy cattle, including calves and lactating dairy cows. Use GardStar Plus ear tags to control susceptible horn flies, face flies, Gulf Coast ticks, spinose ear ticks and as an aid in the control of lice, stable flies and houseflies. Use one tag for control of susceptible horn flies. Use two tags for season-long control of face flies and Gulf Coast ticks. Tags remain effective for up to 5 months. Use the Y-Tex Ultra Tagger to apply. 9.5 grams. Contains 25 insecticide ear tags. | Y-Tex GardStar Plus Insecticide Ear Tags