Fig. 2

Mean monthly percentage mortality (24 h) of Anopheles gambiae (Kisumu). Mean represents 24 h mortality after 30 min cone bioassay on mud, cement, painted, white wash, and burnt brick walls that were sprayed with Actellic® 300CS in 2015, 2016 and 2017. The red dotted line shows the WHO standard cut-off (80% mortality)