Table 4.
Effect of planting density on incidence of insect pests (pooled data for 2015–16 to 2019–20).
| Treatments | Leaf miner Infestation (%) |
Psylla population (per 5 cm twig) | Aphid population (twig−1) | Mite infestation (%) |
|---|---|---|---|---|
| Control | 18.46 (24.02d) | 6.44 (2.45e) | 8.23 (2.83e) | 10.67 (19.05d) |
| HDP-1 | 25.54 (29.57c) | 9.98 (3.10d) | 10.58 (3.23d) | 14.73 (22.55d) |
| HDP-2 | 31.20 (33.32b) | 15.02 (3.78c) | 15.49 (3.90c) | 20.70 (26.98c) |
| UHDP-1 | 34.96 (35.77b) | 20.52 (4.39b) | 20.66 (4.53b) | 26.58 (30.99b) |
| UHDP-2 | 40.07 (39.03a) | 27.59 (5.10a) | 30.58 (5.48a) | 32.63 (34.76a) |
Figures under parenthesis are transformed values.
Means with at least one letter common are not statistically significant using TUKEY's Honest Significant Difference at 5%
Control: Planting at 6 m (row to row) × 6 m (plant to plant) spacing (tree density—277 plants ha−1), HDP-1: Planting at 6 m (row to row) × 3 m (plant to plant) spacing (tree density—555 plants ha−1), HDP-2: Planting at 4 m (row to row) × 4 m (plant to plant) spacing (tree density—625 plants ha−1), UHDP-1: Planting at 4 m (row to row) × 2 m (plant to plant) spacing (tree density—1250 plants ha−1), UHDP-2: Planting at 2 m (row to row) × 2 m (plant to plant) spacing (tree density—2500 plants ha−1).