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Table 4 Percent knockdown, knockdown time (KDT) (in minutes) and mortality rates of Anopheles arabiensis exposed to pyrethroids and DDT from Chano in Southwest Ethiopia

From: Blood meal origins and insecticide susceptibility of Anopheles arabiensis from Chano in South-West Ethiopia

Insecticides tested Number exposed % knockdown KDT50 (95% CI) KDT90 (95% CI) % mortality (±SE) Status[27](<80%)
Lambdacyhalothrin (0.05%) 80 80 39 (36–43) ** 56 ± 9.6 resistant
Alphacypermethrin (0.05%) 80 89 27 (20–32) ** 50 ± 5.4 resistant
Cyfluthrin (0.15%) 80 96 25 (19–29) 42 (37–51) 50 ± 9.5 resistant
Deltamethrin (0.05%) 80 100 21 (18–23) 35 (31–39) 47 ± 3.2 resistant
DDT (4%) 80 10 * ** 10 ± 3.5 resistant
  1. * 50% was not knocked down ** 90% was not knocked down, CI= confidence interval, SE = standard error.