Fig. 5From: Adult mosquitoes of the sibling species Anopheles gambiae and Anopheles coluzzii exhibit contrasting patterns of susceptibility to four neonicotinoid insecticides along an urban-to-rural gradient in Yaoundé, CameroonEffects of piperonyl butoxide (PBO) on the efficacy of three neonicotinoids against resistant An. gambiae mosquitoes. *Mortality was significantly higher in the presence of PBO (p < 0.05, Fisher’s exact test). Black diamond suit: mortality was significantly lower in the presence of PBO (p < 0.05)Back to article page