Oil Conc. | M. piperta | C. citratus | O. magoranum | T. vulgaris | Negative control |
5 μl/20 ml | 15.6 ± 0.5 | 22.0 ± 0.6 | 24.5 ± 0.4 | 26.0 ± 0.41 | 50.3 ± 0.2 |
10 μl/20 ml | 11.4 ± 0.45 | 16.3 ± 0.5 | 17.7 ± 0.31 | 18.3 ± 0.37 | 50.3 ± 0.2 |
15 μl/20 ml | 5.0 ± 0.15 | 12.2 ± 0.34 | 13.9 ± 0.56 | 14.5 ± 0.36 | 50.3 ± 0.2 |
20 μl/20 ml | TI | 10.7 ± 0.32 | 12.3 ± 0.12 | 12.8 ± 0.24 | 50.3 ± 0.2 |
40 μl/20 ml | TI | TI | TI | TI | 50.3 ± 0.2 |