Warfarin Resistance of Rattus flavipectus and Rattus norvegicus in Xuwen County of Guangdong

ObjectiveTo monitoring the resistance of Rattus flavipectus and Rattus norvegicus to Warfarin in Xuwen County, Gruangdong. MethodIngestion test without selectivity was carried out. ResultResistance rate of Rattus flavipectus to Warfarin in Xuwen was 5%, but resistance individual of Rattus norvegicus wasn't found. There was no significant difference between Lethal dose of active ingredient and sex of Rattus flavipectus and Rattus norvegicus by t test (t 1=0.677, t 2=1.48, P0.05). ConclusionThe first generation anticoagulant rodenticide may be taken continually, and the development of population with resistance should be surveyd.