2025, Vol. 6, Issue 2, Part D
Insecticide susceptibility status of Malaria vectors in Mizoram, North East India
Author(s): K Vanlalhruaia, Johnson Amala Justin and G Gurusubramanian
Abstract: Mizoram is one of the hilly forested states in India and has the highest malaria cases based on population wise. Indoor residual spraying (IRS) and long-lasting insecticidal nets (LLINs) are malaria vector control measures but the emergence of insecticide resistance presents a significant challenge to the effectiveness of vector control strategies. The survey was conducted in 3 highly malaria endemic districts to generate data on insecticide resistance in malaria vectors. Susceptibility tests were conducted on adult vector species as per the WHO standard technique with wild-caught mosquitoes. Female mosquitoes were exposed in 3 to 4 replicates on each occasion to the impregnated papers with specified discriminating dosages of the insecticides (DDT: 4%, deltamethrin: 0.05%, and alphacypermethrin: 0.05%), for one hour, and mortality was recorded after a 24-hour holding. DDT (4%) resistance was detected among the vector species in all 3 districts with mortality ranging from 64% to 84.3%. Deltamethrin was found susceptible while the possibility of resistance was also observed. Alpha-cypermethrin was found susceptible to all the selected study sites (98.75-100% mortality). Regular monitoring of insecticide susceptibility in malaria vectors is needed for implementing effective vector management strategies.
DOI: 10.33545/27080013.2025.v6.i2d.257
Pages: 245-249 | Views: 35 | Downloads: 13
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How to cite this article:
K Vanlalhruaia, Johnson Amala Justin, G Gurusubramanian. Insecticide susceptibility status of Malaria vectors in Mizoram, North East India. Acta Entomol Zool 2025;6(2):245-249. DOI: 10.33545/27080013.2025.v6.i2d.257
