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Evaluation of Pyrethroid Susceptibility in Culex pipiens of Northern Izmir Province, Turkey

BACKGROUND: Mosquitoes, being a nuisance species, are considered as one of the most important species in public health control programs due to their role as a vector in mosquito-borne diseases observed in humans and animals. We evaluated the susceptibility status of Culex pipiens collected from nort...

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Detalles Bibliográficos
Autores principales: Guntay, Onur, Yikilmaz, Mehmet Salih, Ozaydin, Huseyin, Izzetoglu, Savas, Suner, Asli
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Tehran University of Medical Sciences 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6423456/
https://www.ncbi.nlm.nih.gov/pubmed/30918906
Descripción
Sumario:BACKGROUND: Mosquitoes, being a nuisance species, are considered as one of the most important species in public health control programs due to their role as a vector in mosquito-borne diseases observed in humans and animals. We evaluated the susceptibility status of Culex pipiens collected from northern Izmir, Turkey in 2011–16. METHODS: Mosquito larvae, collected from three different locations in northern İzmir, were reared in the laboratory. Adult susceptibility bioassays were performed using the WHO insecticide-impregnated papers including deltamethrin 0.05%, permethrin 0.75%, α-cypermethrin 0.05% and cyfluthrin 0.15%. In addition, adult bioassays were performed after the pre-exposure to piperonyl butoxide (PBO) to determine the contribution of P450 detoxification enzymes to the phenotypic resistance. RESULTS: In all of the three populations, high levels of resistance were observed (mortalities<63%) to all of the four pyrethroids. Different pyrethroids but with the same mode of action can exhibit significantly different phenotypic resistance in a single population. PBO bioassays also showed that P450 detoxification enzymes can have diverse effects on different pyrethroids. CONCLUSION: Using just one chemical in a class of insecticide can be misleading for resistance studies.