Table 2.
Larvicidal activity of K. sumatrensis aqueous leaf extract (ALE) and synthesized ZnO-NPs against IVth instar larvae of Aedes aegypti.
| Time (Hour) |
Samples | LC50 (mg/mL) (LCL-UCL) |
LC90 (mg/mL) (LCL-UCL) |
χ2 | df |
|---|---|---|---|---|---|
| 12 | Plant extract | 37.36 (29.08−66.62) | 67.29 (48.42−137.29) | 1.79 | 13 |
| ZnO-NPs | 23.19 (19.42−31.37) | 51.82 (39.85−84.76) | 1.74 | 13 | |
| 24 | Plant extract | 26.01 (21.88−35.34) | 52.35 (40.70−82.84) | 1.32 | 13 |
| ZnO-NPs | 10.35 (07.08−12.66) | 29.56 (25.30−37.51) | 1.49 | 13 | |
| 48 | Plant extract | 16.06(13.05−19.47) | 41.56 (33.42−60.71) | 0.76 | 13 |
| ZnO-NPs | 0.98 (3.55−5.27) | 22.68 (19.09−30.21) | 1.67 | 13 |
LC50-Lethal concentration kills 50 % of the exposed larvae, LC90-Lethal concentration kills 90 % of the exposed larvae. LCL-Lower confidence limit, UCL-Upper confidence limit, χ2 Chi-square value, df = degrees of freedom.