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Table 1 The mean (SE) monthly mortality rate of An. marajoara after 24 h post-exposure to six different insecticides sprayed on four different surfaces: painted wooden wall (WP1), unpainted wooden wall (WP2), plastered cement wall (CP1), and the unplastered cement wall (CP2)

From: Efficacy of insecticides used in indoor residual spraying for malaria control: an experimental trial on various surfaces in a “test house”

Insecticide Substrate Days post IRS
1 30 60 90 120 150 180 210 240a
Alpha-cypermethrin SC WP1 1.00 (−) 1.00 (−) 0.99 (0.02) 0.78 (0.04) 0.81 (0.04) 0.49 (0.07) 0.25 (0.06)
WP2 0.82 (0.05) 0.92 (0.03) 0.47 (0.14) 0.43 (0.12)
CP1 0.99 (0.02) 0.77 (0.06) 0.22 (0.05)
CP2 0.97 (0.03) 0.51 (0.04) 0.49 (0.08)
Etofenprox WP WP1 1.00 (−) 1.00 (−) 0.85 (0.04) 0.82 (0.05) 0.58 (0.10) 0.30 (0.08)
WP2 1.00 (−) 0.97 (0.02) 0.98 (0.03) 0.97 (0.02) 0.86 (0.06) 0.68 (0.08) 0.33 (0.08)
CP1 1.00 (−) 0.93 (0.03) 0.87 (0.05) 0.40 (0.07) 0.54 (0.08)
CP2 0.97 (0.02) 0.67 (0.11) 0.54 (0.07)
Lambda-cyhalothrin WP WP1 1.00 (−) 0.98 (0.02) 0.62 (0.11) 0.43 (0.07)
WP2 0.96 (0.02) 0.96 (0.03) 0.73 (0.05) 0.63 (0.10)
CP1 0.88 (0.04) 0.79 (0.06) 0.03 (0.02)
CP2 0.98 (0.02) 0.74 (0.05) 0.60 (0.11)
Deltamethrin WG WP1 1.00 (−) 1.00 0.98 (0.03) 0.97 (0.03) 0.95 (0.02) 0.94 (0.02) 0.85 (0.05) 0.82 (0.04) 0.83 (0.06)
WP2 1.00 (−) 0.98 (0.02) 0.58 (0.08) 0.94 (0.03) 0.94 (0.03) 0.94 (0.03) 0.92 (0.04) 0.98 (0.02) 1.00 (−)
CP1 1.00 (−) 1.00 (−) 0.90 (0.06) 0.87 (0.04) 0.74 (0.07) 0.68 (0.08)
CP2 1.00 (−) 0.99 (0.02) 0.85 (0.06) 0.73 (0.13) 0.66 (0.07)
Bendiocarb WP WP1 1.00 (−) 1.00 (−) 1.00 (−) 1.00 (−) 0.53 (0.13) 0.60 (0.12)
WP2 1.00 (−) 1.00 (−) 1.00 (−) 1.00 (−) 0.46 (0.12) 0.65 (0.14)
CP1 1.00 (−) 0.11 (0.03) 0.03 (0.02)
CP2 1.00 (−) 0.05 (0.03) 0.06 (0.02)
Pirimiphos-methyl CS WP1 1.00 (−) 1.00 (−) 1.00 (−) 0.98 (0.03) 1.00 (−) 1.00 (−) 1.00 (−) 0.98 (0.02) 0.79 (0.10)
WP2 1.00 (−) 1.00 (−) 0.94 (0.04) 0.79 (0.08) 0.84 (0.05) 0.87 (0.05) 0.73 (0.10) 0.66 (0.07)
CP1 1.00 (−) 0.98 (0.03) 1.00 (−) 0.92 (0.06) 0.69 (0.11) 0.95 (0.04) 0.65 (0.09) 1.00 (−) 0.90 (0.06)
CP2 1.00 (−) 0.97 (0.02) 1.00 (−) 0.98 (0.02) 1.00 (−) 0.98 (0.02) 0.97 (0.04) 0.92 (0.03) 0.98 (0.03)
  1. aThe experiments were maintained until a mortality rate of less than 80% was observed for two consecutive months