Figure 1From: Implications of bio-efficacy and persistence of insecticides when indoor residual spraying and long-lasting insecticide nets are combined for malaria preventionResults of monthly bioassays showing residual activity of various IRS compounds sprayed on mud walls and Mikeka ceilings of experimental huts. The controls in this assays consisted of bioassays conducted walls and ceilings of unsprayed experimental huts.Back to article page