Sulphur and the cattle tick Boophilus microplus.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D007300:Insect Control; D013455:Sulfur / Q000627:therapeutic use*; D013984:Tick Infestations / Q000628:therapy / Q000662:veterinary*; D013987:Ticks
D013455:Sulfur