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International Journal of Mosquito Research
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International Journal of Mosquito Research
Vol. 7, Issue 4, Part B (2020)

Synthetic pyrethroid resistance/susceptibility status of Anopheles culicifacies Giles and Anopheles subpictus Grassi in Telga Aarapur Village, Bastar District, Chhattisgarh

Author(s): Anju Viswan K, Radhey Lal Korram, Devangan TP, Vemu Perriah and Sandip S Jogdand
Abstract: Background & Objectives: One of the major malaria vectors in Bastar District is Anopheles culicifacies Giles and the most abundant species of Anopheles is Anopheles subpictus Grassi. Indoor residual spraying and long lasting insecticide treated nets are the major methods used for controlling malaria transmission. In Chhattisgarh State, the control of malaria vectors has become dependent on synthetic pyrethroids, which are used for treatment of all approved long-lasting insecticidal nets (LLINs). The vast use of just one class of insecticide has led to the problem of resistance to insecticides in malaria vectors. The aim of this study was to determine the resistance/susceptibility status of An. culicifacies and An. subpictus to alpha-cypermethrin and deltamethrin, the commonly using synthetic pyrethroids.
Methods: Adult mosquitoes were collected during May 2019 to February 2020 from Telga Aarapur village in Bastar District. The blood-fed wild caught females were exposed to the diagnostic dosage of alpha-cypermethrin (0.05%) and deltamethrin (0.05%) for one hour. Mortality was recorded at 24 h after the exposure.
Results: Results of present study indicated that An. subpictus was resistant to both pyrethroid insecticides used in the malaria control programme and An. culicifacies resistant towards deltamethrin and moderately resistant to alpha-cypermethrin.
Interpretation & Conclusions: Development of pyrethroid resistance in An. culicifacies is alarming and it would be a major problem in the malaria control programme. Resistance management strategy by appropriate rotation of different groups of insecticides should be considered for the control of malaria vectors. Periodical monitoring of susceptibility/resistance status of malaria vectors to different insecticide classes need to be carried out to find out the efficacy of control measures.
Pages: 91-94  |  25 Views  9 Downloads
How to cite this article:
Anju Viswan K, Radhey Lal Korram, Devangan TP, Vemu Perriah and Sandip S Jogdand. Synthetic pyrethroid resistance/susceptibility status of Anopheles culicifacies Giles and Anopheles subpictus Grassi in Telga Aarapur Village, Bastar District, Chhattisgarh. International Journal of Mosquito Research. 2020; 7(4): 91-94.
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