Durasect II Long-Acting Livestock Pour-On is a ready-to-use, highly concentrated, waterproof formulation that contains two insecticides (Permethrin and pyrethrins), plus a synergist (Piperonyl Butoxide), that increases the effectiveness of both insecticides. Patented water-repellent ingredient that binds Durasect II to the hair of cattle for control that won’t wash off. Approved for use in beef cattle, lactating and non-lactating dairy cattle, and calves. Controls horn flies (up to 6 weeks), face flies (up to 4 week), and biting lice. Effective in the control of horn flies suspected to be pyrethroids-resistant. Water-based formulation with no withdrawal time for slaughter or milk. Apply along back and down face. 3 ml per 100 lbs body weight of animal, up to 30 ml for any one animal.

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