Establishment of the correlation between resistance level to deltamethrin and physiological age of An. gambiae sensu lato populations from Dogbo district in South-Western Benin, West Africa

The current study was aimed to establish the correlation between resistance level deltamethrin and physiological age of An. gambiae sensu lato populations from Dogbo district in South-Western Benin, West Africa. Female s.l. mosquitoes were collected window traps put on windows rooms surveyed. March July August November 2020 during rainy season locations Ayomi, Dévé, Honton, Lokogohoué, Madjrè Totchangni. species morphologically identified using morphological keys then transferred into mosquito cages for WHO bioassays performed with impregnated papers (0.05%). adult female determined through dissection Detinova method. results showed that more old, they susceptible deltamethrin. Otherwise, young resistant than old. There is a Benin.