Table 2.
Overall percentage mortality response of both Anopheles gambiae ss and Culex quinquefasciatus exposed in different concentrations (ppm) of S.terebinthifolia in both laboratory and semi field environments for 72 hours
| Study site | Mosquito species | Larval mortality (% mean mortality ± SE) | ||||
|---|---|---|---|---|---|---|
| 202.15 ppm | 404.30 ppm | 808.60 ppm | 1617.20 ppm | 2625.20 ppm | ||
| Laboratory | An. gambiae ss | 13.75 ± 1.20 | 20.5 ± 1.61 | 92.91 ± 0.95 | 93.13 ± 0.96 | 97.91 ± 0.27 |
| Cx. quinquefasciatus | 0.5 ± 0.06 | 1.25 ± 0.15 | 74.37 ± 2.24 | 82.50 ± 1.89 | 96.75 ± 0.40 | |
| Chi-square test | χ 2 = 11.34,P < 0.001 | χ 2 = 17.18, P < 0.001 | χ 2 = 11.24, P < 0.001 | χ 2 = 4.33, P = 0.047 | χ 2 = 0.005, P = 0.862 | |
| Semi field | An. gambiae ss | 44.13 ± 0.97 | 51.96 ± 1.08 | 62.61 ± 1.01 | 81.03 ± 1.00 | 90.64 ± 0.79 |
| Cx. quinquefasciatus | 30.78 ± 0.81 | 38.42 ± 0.96 | 50.88 ± 1.05 | 76.37 ± 1.21 | 89.54 ± 0.89 | |
| Chi-square test | χ2 = 3.25,P = 0.589 | χ2 = 3.17, P = 0.062 | χ 2 = 2.34,P = 0.172 | χ 2 = 0.40, P = 0.420 | χ 2 = 0.001, P = 0.817 | |
*Values are mean of five replicates in each dosage
*SE: standard error