title: Synthetic pyrethroids to control headfly.
mesh_terms: D000818:Animals; D004175:Diptera; D007306:Insecticides / Q000008:administration & dosage*; D011722:Pyrethrins / Q000008:administration & dosage*; D012756:Sheep; D012757:Sheep Diseases / Q000517:prevention & control*
chemical_list: D007306:Insecticides; D011722:Pyrethrins