Fig. 5From: What can be learned from the residual efficacy of three formulations of insecticides (pirimiphos-methyl, clothianidin and deltamethrin mixture, and clothianidin alone) in large-scale in community trial in North Benin, West Africa?Residual efficacy of pirimiphos-methyl 300CS on mud and cement walls; h = hour; Tr = Treated rooms; Co=control rooms not treated with insecticides; % = percentage; The red dotted line indicate the WHO efficacy threshold of 80%Back to article page