Table 3.
Repellent rate for C. camphora essential oils and linalool against cotton aphids at different concentrations after 12 h and 24 h of treatment.
| Time (h) | Concentration (μL/mL) | Repellent Rate (%) | Concentration (μL/mL) | Repellent Rate (%) | |||
|---|---|---|---|---|---|---|---|
| Leaves | Twigs | Seeds | Linalool | DEET | |||
| 12 | 20 | 75.44 ± 1.76a | 70.97 ± 2.79a | 76.19 ± 2.75a | / | 10 | 88.71 ± 4.27a |
| 10 | 47.37 ± 3.03b | 51.61 ± 2.79b | 53.40 ± 3.17b | 70.18 ± 3.51a | 5 | 77.42 ± 4.41ab | |
| 5 | 31.58 ± 5.26c | 30.65 ± 1.61c | 36.51 ± 1.59c | 56.14 ± 4.64b | 2 | 72.58 ± 4.34b | |
| 2 | 19.30 ± 1.75d | 19.35 ± 1.62d | 20.63 ± 4.20c | 49.12 ± 4.34bc | 0.5 | 54.84 ± 4.63c | |
| 1 | 10.53 ± 3.04d | 6.45 ± 1.61e | 12.70 ± 1.59d | 36.84 ± 3.83cd | 0.1 | 38.71 ± 4.27d | |
| 0.5 | / 1 | / | / | 26.32 ± 3.04d | 0.01 | 20.97 ± 1.61e | |
| 24 | 20 | 83.83 ± 1.47a | 72.13 ± 1.64a | 89.86 ± 1.45a | / | 10 | 80.70 ± 1.75a |
| 10 | 60.29 ± 4.41b | 59.01 ± 5.91b | 69.57 ± 2.51b | 76.56 ± 2.70a | 5 | 71.93 ± 4.64ab | |
| 5 | 42.65 ± 4.31c | 52.46 ± 4.34b | 55.07 ± 3.83c | 65.63 ± 4.14b | 2 | 66.67 ± 1.75b | |
| 2 | 25.00 ± 2.56d | 36.07 ± 5.68c | 36.23 ± 1.45d | 59.38 ± 4.13bc | 0.5 | 54.38 ± 3.51c | |
| 1 | 17.65 ± 3.89d | 29.51 ± 5.91d | 21.74 ± 0e | 48.44 ± 2.71d | 0.1 | 43.86 ± 6.32c | |
| 0.5 | / | / | / | 37.50 ± 1.56e | 0.01 | 19.3 ± 3.51d | |
1 / without treatment at the given concentration; Mean (± standard error) of three replicates for each sample. Percentage values followed by the same letter are not significantly different in the same group at p ≤ 0.05 (Duncan’s test).