Table 1.
The larvicidal effects of essential oils against the third instar larvae of Culex pipiens at 24 h post-treatment.
| Oil | Conc. ppm | Mortality% (Mean ± SE) |
LC50 (LCL - UCL.) |
LC90 (LCL - UCL.) |
LC95 (LCL - UCL.) |
Chi (Sig) |
|---|---|---|---|---|---|---|
|
Lavender Lavandula angustifolia |
0.0 | 0.00 ± 0.0a | 301.11 (259.12-352.37) |
1437.63 (1087.06-2096.14) |
2239.31 (1600.19-3544.70) |
2.175 (0.537a) |
| 62.5 | 12.00 ± 1.26b | |||||
| 125 | 23.20 ± 1.50c | |||||
| 250 | 40.80 ± 1.96d | |||||
| 500 | 63.20 ± 4.27e | |||||
| 1000 | 87.20 ± 3.44f | |||||
|
Peppermint Mentha piperita L. |
0.0 | 0.00 ± 0.0a | 269.35 (233.37-311.12) |
1137.74 (890.87-1571.50) |
1711.70 (1276.39-2536.21) |
4.148 (0.246a) |
| 62.5 | 12.80 ± 0.80b | |||||
| 125 | 24.00 ± 1.79c | |||||
| 250 | 42.40 ± 1.60d | |||||
| 500 | 68.00 ± 2.83e | |||||
| 1000 | 92.00 ± 1.79f | |||||
|
Rosemary Rosmarinus officinalis L |
0.0 | 0.00 ± 0.0a | 214.97 (190.54-242.28) |
671.77 (560.35-845.93) |
927.90 (748.20-1226.12) |
7.742 (0.052a) |
| 62.5 | 11.20 ± 1.50b | |||||
| 125 | 27.20 ± 1.50c | |||||
| 250 | 51.20 ± 2.94d | |||||
| 500 | 79.20 ± 0.80e | |||||
| 1000 | 100.00 ± 0.00f |
Significance at 0.05 level between different superscripts. (a) In Chi-Square Tests, no heterogeneity factor was used in the calculation of confidence limits because the significance level was greater than 0.050.