Table 5. Repellent activity (%) of essential oil from C. citrinus against T. Castaneum.
| Concentration (μl/L) | After Exposure (hrs) | Chi-Square test | ||||||
|---|---|---|---|---|---|---|---|---|
| 2 | 4 | 6 | 12 | 24 | ||||
| Larvae | χ2 | df | p value | |||||
| 5 | 24.3±2.9 | 24.3±2.9 | 25.3±3.6 | 26.3±3.9 | 30.5±3.1 | 23.29 | 28 | 0.72 |
| 10 | 40.9±2.1 | 41.4±1.7 | 41.4±1.7 | 42.4±1.6 | 45.6±3.0 | 15.67 | 16 | 0.48 |
| 15 | 61.4±1.3 | 61.8±1.1 | 63.2±2.0 | 63.2±2.0 | 64.5±1.9 | 18.46 | 20 | 0.56 |
| 20 | 70.2±1.3 | 74.4±1.6 | 81.7±1.7 | 82.1±1.5 | 93.3±3.1 | 72.00 | 36 | 0.00 |
| Adult-repellent activity (%) | Concentration (μl/L) | |||||||
| 5 | 10 | 15 | 20 | - | χ2 | df | p value | |
| 31.1±1.95 | 64.8±1.6 | 89.1±1.4 | 100±0.0 | - | 36.00 | 27 | 0.12 | |
Mean of five replication ± SE