中国媒介生物学及控制杂志

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大功达对印鼠客蚤毒杀效果研究

吴鹤松1;蔡文凤1;罗启松2;王国良1;梁伟2;陶开会1;王光惠2;马杰2;何伟平2;石兴建3;孔云泉4;管国壁4   

  1. 1云南省地方病防治所 大理671000;2德宏州疾病预防控制中心;3梁河县疾病预防控制中心;4梁河县芒东镇卫生院
  • 出版日期:2004-06-20 发布日期:2004-06-20

Studies on the Toxicity of Dagongda to Rat Flee Xenopsylla cheopis (Siphonaptera:Pulicidae)

WU He-song*; CAI Wen-feng; LUO Qi-song; et al   

  1. Yunnan Institute of Endemic Diseases Control and Prevention, Dal i 671000, China
  • Online:2004-06-20 Published:2004-06-20

摘要: 目的观察国产杀虫剂大功达对印鼠客蚤的实验室毒效和现场灭效。方法实验室用瓶膜法,现场用滞留喷洒法。结果(1)当药物浓度为0.0025%时,KT50为3.77(3.40~4.15)min;药物浓度为0.005%和0.01%时,KT50分别为3.17(2.88~3.48)min和3.45(3.25~3.65)min。(2)当药物浓度在0.0025%、0.005%、0.01%时,印鼠客蚤24h死亡率均为100%。(3)持效:药膜在室温和普通湿度下存放9个月后,药物浓度在0.0025%以上时,印鼠客蚤24h死亡率均为100%。(4)现场2d灭效:使用0.03%浓度对地面游离印鼠客蚤的校正灭蚤率为80.80%。(5)现场残效(29d):使用0.03%浓度对地面游离印鼠客蚤的校正灭蚤率为93.87%。结论大功达8%可湿性粉剂毒力强,现场灭效好,气味小,对人畜安全,可在控制家鼠鼠疫灭蚤中推广使用

关键词: 大功达, 印鼠客蚤, 毒效, 现场灭效

Abstract: Objective To studies the efficacy of 8% Dagongda against Xenopsylla cheopis.Methods Using residual smearing method and laboratory,resort spraying method in field.Results(1)At concentration of 0.002 5%,the KT50 is 4 min :0.002 5% is 3.77(3.40-4.15)min ;0.005% is 3.17( 2.88- 3.48)min;0.01% is 3.45(3.25-3.65)min ;(2)the LC50 is 0.000 530 9%(0.000 490 0%-0.000 575 2%);(3)the 100% mortality(24 hour) with the Dagongda concentration is at the rate of 0.002 5% ;(4)when used as residual smearing,Dagongda can be keep its efficacy more than 270 days under room temperature;(5)The field tests,the killing rates of 0.03% Dagongda to Xenopsylla cheopis were 80.80% for 2 days and 93.87% for 29 days respectively.Conclusion The Dagongda can be used in flea control in plague epidemic area.