关键词: 褐家鼠, 杀鼠灵, 抗药性, 抗凝血灭鼠剂, 灭鼠率

Abstract: The paper introduces the investigations of Rattus norvegicus on susceptibility and resistance to 0.005% Warfarin bait in Jinan Military Area where anticoagulant rodenticide have been used for many years. It indicated that resistance incidence of R.norvegicus was 2.04% in Jinan city, and 4.17% in Xuchang city while R.norvegius were still susceptible to anticoagulant rodenticides in Weifang city and Huixian city. In the laboratory, all of the killing rates with “un-selective ingesting”were all 100.00% to Indian corn bait containing 0.005% Bromadiolone, 0.025% Racumin and 0.025% Diphacine-Na, killing rate with “selective ingesting”were 92.86% in Bromadiolone bait, 61.54% in Racumin, and 38.46% Diphacine-Na. Ingesting index was 0.70 in Bromadiolone bait, 0.45 in Racumin and 0.22 in Diphacine-Na. In the field trial, the palatability of Bromadiolone and Racumin rice baits to R. norvegicus were better than Diphacine-Na and the control deratization rates were 85.11%, 87.33% and 81.55% respectively.