GardStar 40% EC is an emulsifiable concentrate formula that contains 40% permethrin. Highly active as an insecticide and as a repellent against arthropod pests (horn, face, stable, house, horse, deer & black flies, mosquitoes, eye gnats, mange mites, scabies mites, Northern fowl mites, ticks, lice and sheep keds). Guard Star is for use on beef and dairy cattle, including lactating dairy cows, sheep, goats, swine, poultry, horses, dogs, and their premises, including milk rooms. Dosage: For livestock spray, mix 30-118 ml to 25 gal water (treats 50-100 animals); For a premise spray, mix 90-118 ml to 10 gal water. See label for additional dosage directions. Can be used in sprayers and with backrubbers. No milk withholding. Slaughter withdrawal: Swine - 5 days.