Table 1.
Efficacy of four hexane plant extracts on Culex pipiens and Aedes aegypti larval mortality, 24 h post-treatment.
| Time (hr) | Solvent | Concentration (ppm) | ||||||
|---|---|---|---|---|---|---|---|---|
| 0 | 50 | 125 | 250 | 500 | 1000 | 1500 | ||
| Culex pipiens | D. stramonium | 0 ± 0aF | 16 ± 1.63bE | 39 ± 3.42bD | 74 ± 2.58bC | 95 ± 1.00bB | 100 ± 0aA | 100 ± 0aA |
| C. annuum | 0 ± 0aF | 12 ± 1.63cE | 32 ± 1.63cD | 66 ± 2.00cC | 90 ± 2.00cB | 100 ± 0aA | 100 ± 0aA | |
| N. tabacum | 0 ± 0aE | 19 ± 1.91aD | 43 ± 2.52aC | 80 ± 2.83aB | 99 ± 1.00aA | 100 ± 0aA | 100 ± 0aA | |
| W. somnifera | 0 ± 0aF | 11 ± 1.00cE | 31 ± 1.91cD | 63 ± 1.91dC | 87 ± 3.42dB | 99 ± 1.00aA | 100 ± 0aA | |
| Aedes aegypti | D. stramonium | 0 ± 0aG | 13 ± 1.00aF | 27 ± 1.00bE | 49 ± 2.52bD | 72 ± 1.63bC | 96 ± 3.46bB | 100 ± 0aA |
| C. annuum | 0 ± 0aG | 10 ± 1.15bF | 21 ± 1.00cE | 42 ± 3.46cD | 65 ± 3.42cC | 91 ± 1.91cB | 100 ± 0aA | |
| N. tabacum | 0 ± 0aF | 14 ± 1.15aE | 34 ± 2.58aD | 57 ± 1.91aC | 83 ± 1.91aB | 100 ± 1.15aA | 100 ± 0aA | |
| W. somnifera | 0 ± 0aG | 8 ± 0.00cF | 18 ± 1.15dE | 35 ± 1.91dD | 60 ± 2.31dC | 86 ± 1.15dB | 100 ± 0aA | |
a, b & c: There is no significant difference (P > 0.05) between any two means, within the same column have the same superscript letter. A, B & C: There is no significant difference (P > 0.05) between any two means, within the same row have the same superscript letter.