Research Article
Chemical Constituents and Combined Larvicidal Effects of Selected Essential Oils against Anopheles cracens (Diptera: Culicidae)
Table 3
Larvicidal activity of plant-derived essential oils against the 4th instar larvae of A. cracens.
| Concentration of plant oil (ppm) | % Mortality (mean ± SE) | Larvicidal activity (95% CI, ppm) | Slope values ± SE | LC50 | LC95 | LC99 |
| Piper sarmentosum | | | | | | 12.7 | 9.25 ± 3.30 | 16.03 (15.51–16.54) | 20.64 (20.01–21.86) | 22.91 (22.12–24.66) | 14.9920 ± 0.5669 | 14.6 | 23.50 ± 1.29 | 16.4 | 53.75 ± 5.44 | 18.2 | 79.50 ± 2.65 | 20.0 | 94.50 ± 3.11 | Foeniculum vulgare | | | | | | 22.3 | 6.50 ± 1.73 | 32.77 (31.44–34.11) | 46.56 (44.84–49.83) | 53.86 (51.67–58.61) | 10.7846 ± 0.3708 | 26.7 | 12.00 ± 4.08 | 31.2 | 41.00 ± 11.83 | 35.6 | 64.75 ± 6.65 | 40.1 | 82.00 ± 3.74 | 44.5 | 94.25 ± 4.99 | Curcuma longa | | | | | | 20.3 | 12.50 ± 2.08 | 33.61 (29.43–39.15) | 56.49 (59.66–82.13) | 70.04 (79.34–112.48) | 7.2941 ± 0.2698 | 24.3 | 17.50 ± 3.00 | 28.4 | 23.50 ± 2.65 | 32.4 | 31.00 ± 4.40 | 36.5 | 47.25 ± 5.44 | 40.5 | 83.75 ± 0.96 | 44.6 | 90.50 ± 1.29 | Myristica fragrans | | | | | | 28.8 | 10.00 ± 1.15 | 40.00 (37.33–43.32) | 56.56 (55.76–67.70) | 65.28 (65.35–81.90) | 10.9335 ± 0.4652 | 33.6 | 17.75 ± 2.50 | 38.4 | 34.75 ± 4.19 | 43.2 | 63.75 ± 3.86 | 48.0 | 85.75 ± 3.09 | Zanthoxylum piperitum | | | | | | 51.8 | 11.75 ± 1.71 | 63.17 (61.90–64.50) | 85.01 (82.59–89.33) | 96.13 (92.67–102.67) | 12.7574 ± 0.5292 | 55.5 | 29.50 ± 5.26 | 59.2 | 35.25 ± 9.22 | 62.9 | 43.50 ± 2.08 | 66.6 | 61.00 ± 4.32 | 70.3 | 73.50 ± 2.08 | 74.0 | 83.00 ± 3.77 |
|
|