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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