Resistance of Aedes aegypti (L.) (Diptera: Culicidae) populations to organophosphates temephos in the Paraíba State, Brazil
Resistance of Aedes aegypti (L.) (Diptera: Culicidae) populations to organophosphates temephos in the Paraíba State, Brazil
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DOI：
10.1590/s1519-566x2007000200019
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发表时间：
2007-04-01
影响因子：
1.8
通讯作者：
Castro Jr., Francisco P. de
中科院分区：
文献类型：
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作者：
Beserra, Eduardo B.;Fernandes, Carlos R.M.;Castro Jr., Francisco P. de
埃及伊蚊Aedes aegypti（L.）巴西不同州对替美磷的抗性证明了这项研究的合理性，其目的是验证和表征A.来自帕拉伊巴州的埃及人。通过0.012 mg/l的诊断剂量和浓度-死亡率曲线评价和表征了替美磷抗性。将多个浓度的死亡数据提交给Probit分析，并由存活群体的CL 50和实验室易感群体的CL 50计算抗性比率（RR）。所有的A。埃及人对替美磷表现出抗药性。Sitio Piabas种群的抗性较低，RR = 4.0，大坎皮纳的抗性为6.0，Lagoa do Mato的抗性为9.3，Capim de Cheiro的抗性为9.0，博凯劳的抗性为11.0，Brejo dos桑托斯的抗性为16.6，Itaporanga的抗性为15.6。这些结果证实了需要一个持续的监测和管理计划，A。帕拉伊巴州的埃及人抵抗运动。
Rumors of Aedes aegypti (L.) resistance to temephos in diferent Brazilian states justified this research, whose objective was to verify and characterize the resistance to temephos in A. aegypti populations from Paraiba State. The temephos resistance was evaluated and characterized through a diagnostic dose of 0.012 mg/l and concentration-mortality curves. The mortality data of multiple concentrations were submitted to Probit analysis, and the resistance ratios (RR) were figured out from the CL50s of the survived population and CL50 a laboratory susceptible population. All the A. aegypti populations showed resistance to temephos. The Sitio Piabas population with RR = 4.0, showed lower resistance, the Campina Grande with RR = 6.0, Lagoa do Mato with RR = 9.3 and Capim de Cheiro with RR = 9.0, showed a moderate resistance, and Boqueirao with RR = 11.0, Brejo dos Santos with RR = 16.6 and Itaporanga with RR = 15.6, showed intermediate levels of resistance to temephos. These results confirm the need of a continuous monitoring and managing program of A. aegypti resistance in Paraiba State.