Table 1.
Mortality (mean % ± SE) of L3/L4 instars of Anopheles gambiae over 72 h upon exposure to acute toxic levels of M. koenigii extract. Means with the same letters within a column are not significantly different at 5% level.
Concentration 100ppm | |||
---|---|---|---|
Time | 24hrs | 48hrs | 72hrs |
Kibwezi | 18.3 ± 1.74 a | 43.0 ± 2.75 a | 80.3 ± 1.65 a |
Makindu | 26.7 ± 1.80 a | 40.3 ± 1.90 a | 55.7 ± 2.58 b |
Malindi | 15.7 ± 2.50 a | 27.7 ± 3.90 ab | 28.7 ± 3.43 c |
Mombasa | 13.0 ± 2.43 ab | 18.3 ± 3.73 bc | 26.7 ± 4.19 c |
Control | 0.0 ± 0.00 b | 0.3 ± 0.00 c | 1.3 ± 0.59 d |