Figure 3From: Long-lasting control of Anopheles arabiensis by a single spray application of micro-encapsulated pirimiphos-methyl (Actellic® 300 CS)Mortality of Anopheles arabiensis dondotha after one-hour bioassay on experimental hut walls. Time after spraying is shown in months. Mortality for unsprayed walls was <15% for all bioassays.Back to article page