Table 4.
Repellence of Sitophilus zeamais due to treatment of stored maize with α-pinene, 3-carene and Poudrox®.
| Product | Concentration (ppm) | Repellence (%) | Class | Interpretation |
|---|---|---|---|---|
| α-Pinene | Control (5%) | 24.31 ± 9.17 A | II | Low repellence |
| 1 | 41.84 ± 4.48 AB | III | Moderately repellent | |
| 2 | 57.43 ± 7.09 B | IV | Repellent | |
| 3 | 57.62 ± 3.01 B | IV | Repellent | |
| 4 | 68.04 ± 5.27 B | IV | Repellent | |
| F (4,15) | 7.617 ** | |||
| 3-Carene | Control (5%) | 24.31 ± 9.17 B | II | Low repellence |
| 1 | 4.41 ± 5.18 A | I | Very low repellence | |
| 2 | 35.00 ± 6.66 B | III | Moderately repellent | |
| 3 | 60.00 ± 7.07 C | IV | Repellent | |
| 4 | 66.39 ± 5.45 C | IV | Repellent | |
| F (4,15) | 27.481 *** | |||
Means ± S.E. in the same column for the same category of insecticide, followed by the same letter do not differ significantly at p = 0.05 (Tukey test). Each datum represents the mean of four replicates of 20 insects each. **: very significant (p < 0.001); ***: very highly significant (p < 0.0001); Control (5%): Poudrox.