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Alternative control of Aedes aegypti resistant to pyrethroids: lethal and sublethal effects of monoterpene bioinsecticides
Author(s) -
Silva Indira MA,
Martins Gustavo F,
Melo Carlisson R,
Santana Alisson S,
Faro Ruan RN,
Blank Arie F,
Alves Péricles B,
Picanço Marcelo C,
Cristaldo Paulo F,
Araújo Ana Paula A,
Bacci Leandro
Publication year - 2018
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.4801
Subject(s) - aedes aegypti , biology , pyrethroid , linalool , monoterpene , dengue fever , toxicology , population , larva , mosquito control , pesticide , essential oil , botany , ecology , malaria , virology , medicine , immunology , environmental health
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