Monitoring of resistance to the pyrethroid cypermethrin in Brazilian Aedes aegypti (Diptera: Culicidae) populations collected between 2001 and 2003

Memórias do Instituto Oswaldo Cruz

Marcella Pereira Da-cunha¹  José Bento Pereira Lima¹  William G Brogdon²  Gonzalo Efrain Moya²  Denise Valle¹ 

[1] ,Fiocruz Instituto Oswaldo Cruz Departamento de EntomologiaRio de Janeiro RJ ,Brasil

关键词: Aedes aegypti;    pyrethroid resistance;    knock down effect;   

DOI  :  10.1590/S0074-02762005000400017

来源: SciELO

【 摘 要 】

Resistance to cypermethrin of different Aedes aegypti Brazilian populations, collected at two successive periods (2001 and 2002/2003), was monitored using the insecticide-coated bottles bioassay. Slight modifications were included in the method to discriminate between mortality and the knock down effect. Although this pyrethroid was recently started to be used in the country to control the dengue vector, a decrease in susceptibility was noted between both periods analyzed, particularly in the city of Rio de Janeiro. The results indicate that resistance is due at least in part to a target site alteration.

【 授权许可】

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