Insecticide mortality rates and species composition in ten Anopheles gambiae s.l. test populations from Burkina Faso collected in the 2010 rainy season.
For each locality, pie charts (above) indicate the relative frequency of each taxon within An. gambiae s.l. (N = 30 specimens per locality, see text) and bar charts (below) show percentage mortality 24 hours after a 1-hour exposure to the diagnostic doses of insecticide (N = 100 per population). Mortality thresholds (98% and 80%, as recommended by WHO ) are shown on each bar chart (horizontal black lines). nd = not determined.