Figure 1From: Long-lasting control of Anopheles arabiensis by a single spray application of micro-encapsulated pirimiphos-methyl (Actellic® 300 CS)Mortality of Anopheles arabiensis dondotha on mud blocks after one-hour bioassays. Mud blocks were sprayed with p-methyl CS ‘B’, CS ‘BM’, and EC and tested at monthly intervals. Mortality for unsprayed blocks was <15% for all bioassays.Back to article page