Table 2 Mortality and knockdown time of An. funestus and An. gambiae from Obout (Cameroon) after 1 h exposure to pyrethroids
Year | Species/strain | Insecticide | n | kdt50 (min) (IC95) | kdt95 (min) (IC95) | Mortality (%) | Status |
|---|---|---|---|---|---|---|---|
2015 | Kisumu | Perm. 0.75% | 120 | 21.2 (16.1–25) | 40 (33.88–55.5) | 100 | S |
|  |  | Delta. 0.05% | 100 | 18.1 (17.6–18.9) | 24.9 (23.4–27.4) | 100 | S |
|  | An. funestus | Perm. 0.75% | 152 | 17.2 (16.8–17.7) | 22.4 (21.4–23.8) | 94.74a | PR |
|  |  | Delta. 0.05% | 101 | 26.6 (18.2–39.9) | 55.2 (37.7–214.7) | 76.24b | R |
| Â | An. gambiae | Perm. 0.75% | 153 | > 60 | >> 60 | 36.6c | R |
|  |  | Delta. 0.05% | 124 | 38.3 (35–41) | >> 60 | 56.45e | R |
2016 | Kisumu | Perm. 0.75% | 167 | 21.12 (16.1–24.6) | 40.3 (33.88–55.5) | 100 | S |
|  |  | Delta. 0.05% | 159 | 18 (17.6–18.9) | 24.9 (23.4–27.4) | 100 | S |
|  | An. funestus | Perm. 0.75% | 510 | 29.41 (22.52–38.4) | 41.61 (32.15–52.86) | 94.12a | PR |
|  |  | Delta. 0.05% | 573 | 39.62 (20.6–54.19) | 55.19 (44.89–90.19) | 70.54b | R |
| Â | An. gambiae | Perm. 0.75% | 202 | > 60 | >> 60 | 6.00d | R |
| Â | Â | Delta. 0.05% | 343 | > 60 | >> 60 | 18.65f | R |