Figure 3From: Knockdown resistance in Anopheles vagus, An. sinensis, An. paraliae and An. peditaeniatus populations of the Mekong regionMortality categories obtained for An. sinensis, An. paraliae and An. peditaeniatus. The first quartile (up right) represents the results obtained with 0.75% permethrin (PERM). In clockwise direction, results with discriminating concentrations of lambda-cyhalothrin (LAMBDA), alpha-cypermethrin (ALPHA) and DDT are given. The number of exposed An. sinensis varied from 20* (VTYA, permethrin) to 113 (VLCA, alpha-cypermethrin; VTHB, lambda-cyhalothrin) whereas the number of exposed An. peditaeniatus varied from 100 to 105. For each insecticide between 20 (VTYA, permethrin) and 73 (VTYA, DDT) An. paraliae mosquitoes were exposed. * VHGB (perm): number of exposed mosquitoes <20.Back to article page