Baseline Susceptibility of Filarial Vector Culex quinquefasciatus (Diptera: Cu-licidae) to Five Insecticides with Different Modes of Action in Southeast of Iran

  • Yaser Salim-Abadi Department of Health Services and Health Promotion, School of Health, Rafsanjan University of Medical Sciences, Rafsanjan, Iran Pistachio Safety Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
  • Mohammad Asadpour Department of Health Services and Health Promotion, School of Health, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
  • Iraj Sharifi Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
  • Alireza Sanei-Dehkordi Department of Medical Entomology and Vector Control, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran Infectious and Tropical Diseases Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
  • Mohammad Amin Gorouhi Department of Medical Entomology and Vector Control, School of Health, Kerman University of Medi-cal Sciences, Kerman, Iran
  • Azim Paksa Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  • Zohre Tayyebi Student Research Committee, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
  • Abbas Aghaei-Afshar Mail Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
Susceptibility status, Resistance, Insecticide, Culex quinquefasciatus, Iran


Background: Culex quinquefasciatus (Diptera: Culicidae) is an important vector for many human diseases. The aim of this study was to evaluate the susceptibility level of larval and adult stages of Cu. quinquefasciatus to different groups of WHO recommended insecticides for vector control.Methods: Larval stages of the Culex mosquitoes were collected from their natural habitats in Rafsanjan County at Kerman Province, southeast of Iran in 2016. Insecticide susceptibility status of adult female Cx. quinquefasciatus against DDT (4%), deltamethrin (0.05%), malathion 5%, and bendiocarb (0.1%) were determined using WHO stand­ard insecticide susceptibility test. Additional test was carried out to determine the susceptibility status of larvae of Cx. quinquefasciatus to temephos. Bioassay data were analyzed by Probit program.Results: Cx. quinquefasciatus adults showed resistance to all four groups of the tested insecticides according to the WHO criteria for resistance evaluation. The lethal concentrations for 50% mortality (LC50) and 90% mortality (LC90) of temephos against Cx. quinquefasciatus larvae were 0.18mg/l and 0.78mg/l, respectively. This finding also con­firms resistance to temephos based on the WHO recommended instructions for resistance evaluation.Conclusion: Resistance to all groups of the tested insecticides should be considered for future vector control investi­gations in the study area.


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How to Cite
Salim-Abadi Y, Asadpour M, Sharifi I, Sanei-Dehkordi A, Gorouhi MA, Paksa A, Tayyebi Z, Aghaei-Afshar A. Baseline Susceptibility of Filarial Vector Culex quinquefasciatus (Diptera: Cu-licidae) to Five Insecticides with Different Modes of Action in Southeast of Iran. J Arthropod Borne Dis. 11(4):453-462.
Original Article