Table 1 Knockdown times (KdT50 and KdT95) and mortality of Anopheles gambiae s.l. populations from 3 cotton sites after exposure to DDT 4% and permethrin 0.75% and their resistance status
Sites/Strains | Program | Insecticides | N | kdT50 [Cl95] (min) | kdT95 [Cl95] (min) | % Mortality [Conf lim 95] | Resistance status |
|---|---|---|---|---|---|---|---|
DDT | 40 | 65.1 [57.5-73.4] | 152.1 [118.4-228.1] | 38 [29.31-46.7] | R | ||
Parakou | CCP | Permethrin | 75 | 35.3 [32.1-38.4] | 112.1 [88.2-151.9] | 54 [47.49-60.5] | R |
DDT | 60 | 38.1 [29.4-36.5] | 65.1 [57.5-86.5] | 45 [37.73-52.3] | R | ||
N'dali | TICP | Permethrin | 60 | 19.3 [15.6-22.4] | 67.1 [53.2-87.4] | 60 [52.8-67.16] | R |
DDT | 70 | 63.1 [60.2-72.3] | 135.1 [5.2-184.5] | 32 [25.7-38.31] | R | ||
Kandi1 | CCP | Permethrin | 80 | 19.3 [15.6-22.4] | 87.1 [63.5-138.4] | 50 [43.67-56.32] | R |
DDT | 50 | 35.1 [27.1-35.2] | 62.5 [54.2-79.1] | 43 [35.07-50.92] | R | ||
Kandi 2 | TICP | Permethrin | 88 | 15.1 [13.6-20.1] | 56.5 [43.2-77.2] | 58 [52.00-64] | R |
DDT | 60 | 30.3 [25.4-38.9] | 72.6 [50.2-90.5] | 66 [59.08-72.92] | R | ||
Kandi 3 | BP | Permethrin | 80 | 11.0 [8.7 - 17.6] | 23.5 [18.4-35.8] | 94 [91.01-96.98] | S |
DDT | 65 | 56.5 [51.7-63.2] | 186.9 [146.0-265.2] | 35 [28.3041.69] | R | ||
Banikoara 1 | CCP | Permethrin | 90 | 24.6 [20.3-29.0] | 105.2 [92-130.8] | 51[45.04-56.96] | R |
DDT | 70 | 32.4 [25.8-30.2] | 60.1 [50.1-78.6] | 41 [34.34-47.65] | R | ||
Banikoara 2 | TICP | Permethrin | 70 | 18.5 [16.1-22.4] | 58.1 [47.4-78.4] | 59 [52.35-65.65] | R |
DDT | 75 | 29.1 [24.4-37.6] | 70.1 [48.2-88.2] | 64 [57.73-70.27] | R | ||
Banikoara 3 | BP | Permethrin | 80 | 13.2 [9.4 - 18.2] | 25.5 [20.2-37.1] | 95 [92.24-97.75] | S |
DDT | 100 | 25.7 [24.3-27.0] | 40.7 [38.0-44.5] | 98 [96.41-99.58] | S | ||
An. gambiae s.l | * | Permethrin | 100 | 10.9 [9.7-12.0] | 18.1[16.0-21.6] | 99 [97.87100.13] | S |