title: Evaluation of the efficacy of fospirate-treated collars against the brown dog tick.
abstract: Experimental tick infestations on dogs were done to determine the initial kill and residual effectiveness of a 15% fospirate-treated plastic colar against the brown dog tick, Rhipicephalus sanguineus (Latreille). The mean initial kill, determined 4 days after collar application (day 4), was 56.4%. The mean residual effectiveness of fospirate collars on test days 18, 33, 45, 61, 74, 88, and 112  was 89.1, 77.4, 89.5, 78.6, 73.2, 69.0, and 55.0% control, respectively.
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000517:prevention & control*; D004285:Dogs; D005260:Female; D008297:Male; D009943:Organophosphorus Compounds; D009946:Organothiophosphorus Compounds / Q000008:administration & dosage*; D011725:Pyridines / Q000008:administration & dosage*; D013984:Tick Infestations / Q000517:prevention & control / Q000662:veterinary*
chemical_list: D009943:Organophosphorus Compounds; D009946:Organothiophosphorus Compounds; D011725:Pyridines; C010964:fospirate