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Pest Manag Sci ; 74(4): 1001-1012, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29160036

RESUMO

BACKGROUND: The mosquito Aedes aegypti is intensively controlled because it is a vector of viruses that cause numerous diseases, especially in tropical regions. As a consequence of the indiscriminate use of insecticides, populations from different regions have become resistant to pyrethroids. Here, we analyzed the lethal and sublethal effects of essential oil of Aristolochia trilobata and its major compounds on A. aegypti from susceptible and pyrethroid-resistant populations. RESULTS: Our results showed that the toxicity of the different compounds and behavioral changes in response to them are dependent on the stage of the insect life cycle. The monoterpene ρ-cymene caused high mortality in both larvae and adult females of A. aegypti, including those from the pyrethroid-resistant population. The monoterpenes limonene and linalool caused a sublethal effect in the larvae, triggering changes in the swimming pattern. CONCLUSION: This study highlights the potential of the essential oil of A. trilobata and its major compounds ρ-cymene and limonene for the control of A. aegypti and reveals the importance of analyzing sublethal effects on the population dynamics of the A. aegypti mosquito. © 2017 Society of Chemical Industry.


Assuntos
Aedes , Controle de Insetos , Inseticidas , Monoterpenos , Aedes/crescimento & desenvolvimento , Animais , Feminino , Resistência a Inseticidas , Larva/crescimento & desenvolvimento , Pupa/crescimento & desenvolvimento , Piretrinas/farmacologia
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