Bifenthrin: A useful pyrethroid insecticide for treatment of mosquito nets
Bifenthrin: A useful pyrethroid insecticide for treatment of mosquito nets
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DOI：
10.1603/0022-2585-39.3.526
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发表时间：
2002-05-01
影响因子：
2.1
通讯作者：
Guillet, P
中科院分区：
文献类型：
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作者：
Hougard, JM;Duchon, S;Guillet, P
在实验室条件下评价了已用于农业的拟除虫菊酯杀虫剂联苯菊酯对敏感蚊子和拟除虫菊酯抗性蚊子的作用，作为处理蚊帐的潜在杀虫剂。冈比亚按蚊S.s.的两个实验室菌株。使用了非洲主要疟疾病媒Giles和城市地区主要害虫致倦库蚊的两只。与其他拟除虫菊酯如氯菊酯和溴氰菊酯相比，联苯菊酯的内在毒性，用敏感菌株局部施用测量，是中间的。通过强迫接触滤纸（圆柱体试验）或网材料（圆锥体试验），发现联苯菊酯对A. gambiae对C. quinquefasciatus，在死亡率和击倒效应方面。对于自由飞行的蚊子（隧道试验），联苯菊酯在杀灭蚊子和抑制吸血方面非常有效。联苯菊酯对两种拟除虫菊酯抗性菌株的抗性相对较好。gambiae，而C.致倦肌在隧道试验中，尽管有抵抗力，但这两个物种的吸血几乎完全受到抑制。敏感蚊子的高死亡率和敏感和抗性品系的优异的吸血抑制使得联苯菊酯成为处理网材料的良好候选物，特别是在C.致倦鸟是市区的主要害虫，对拟除虫菊酯有抗药性。较慢的击倒和较低的刺激作用也使这种杀虫剂特别有吸引力时，对蚊子种群的大规模杀伤作用是预期的。
Bifenthrin, a pyrethroid insecticide already used in agriculture was evaluated in laboratory conditions against susceptible and pyrethroid resistant mosquitoes, as a potential insecticide for treatment of mosquito nets. Two laboratory strains of Anopheles gambiae s.s. Giles, the major malaria vector in Africa, and two of Culex quinquefasciatus Say, a major pest mosquito in urban areas, were used. Compared with other pyrethroids such as permethrin and deltamethrin, the intrinsic toxicity of bifenthrin, measured by topical application with susceptible strains, was intermediate. By forced tarsal contact on filter papers (cylinder tests) or on netting materials (cone tests), bifenthrin was found slightly more effective against A. gambiae than against C. quinquefasciatus, in terms of mortality and knock-down effect. With free flying mosquitoes (tunnel tests), bifenthrin was very efficient in killing mosquitoes and inhibiting blood feeding. Against the two pyrethroid resistant strains, bifenthrin was relatively efficient against A. gambiae but the impact of resistance was greater with C. quinquefasciatus. In tunnel tests, blood feeding remained almost entirely inhibited with the two species despite resistance. The high mortality of susceptible mosquitoes and excellent blood feeding inhibition of susceptible and resistant strains makes bifenthrin a good candidate for treatment of netting materials, particularly in areas where C. quinquefasciatus, the main nuisance in urban areas, is resistant to pyrethroids. The slower knock-down and lower irritant effect also makes this insecticide especially attractive When a mass killing effect on mosquito populations is expected.