Durasect II

Durasect II is a ready to use long-lasting pour-on for beef cattle, lactating and nonlactating dairy cattle and calves. Effective in control of pyrethroid-resistant horn flies for up to 6 weeks. Control of face flies for at least 4 weeks. Controls biting lice. Applied with squeeze and pour bottle. Can be used once every two weeks. No withdrawal time. Treats 60-500 lb. cattle or 30-1,000 lb. cattle.