Stirofos impregnated cattle ear tags at four rates for horn fly control.
D000818:Animals; D002417:Cattle / Q000469:parasitology*; D002418:Cattle Diseases / Q000517:prevention & control*; D004175:Diptera; D009198:Myiasis / Q000517:prevention & control / Q000662:veterinary*; D013751:Tetrachlorvinphos / Q000494:pharmacology*
D013751:Tetrachlorvinphos