Laboratory Preparations of Lethal and Sub-lethal Bio-assays Concentrations of Deltamethrin Against Malaria Mosquito in Suleja, Nigeria

Abstract

There is paucity of information concerning the resistance status of malaria mosquitoes (Anopheles mosquitoes) in Suleja. The present study therefore aims to prepare various CDC bio-assay concentrations of deltamethrin against Anopheles mosquito in Suleja metropolis, Nigeria. 25 samples of wild Anopheles mosquitoes were collected from Suleja and was exposed in replicate of four, to various concentrations of deltamethrin and then metabolic enzyme activities in exposed samples were examine following standard protocols. Data obtained was analysed using IBM-SPSS version 25.0 and results were expressed in ‘Tables and Figures’. These were compared statistically among deltamethrin concentrations using Analysis of Variance at P=0.05 with the aid of Graph-Pad prism 8. 0.8µg/b, 0.6µg/b, 0.4µg/b, and 0.2µg/b of deltamethrin are sub-lethal concentrations of the insecticide that bring about 0% mortality insignificantly (P ˃ 0.05) different from the mortality in the control experiment. As the mosquito population has developed resistance to recommended concentration of deltamethrin, the study recommends resistance monitoring exercise for effective vector control in Suleja.