Post treatment intervals (hours) | |||||||
---|---|---|---|---|---|---|---|
0 h | 2 h | 12 h | 24 h | 48 h | 72 h | 168 h | |
Mean number of predators ± SE | |||||||
Plant | |||||||
Okra | 7.42 ± 0.73b | 4.14 ± 0.53b | 7.58 ± 1.16b | 7.33 ± 1.09b | 8.81 ± 1.02b | 8.58 ± 0.94b | 9.69 ± 0.93b |
Marrow | 13.36 ± 1.06a | 12.50 ± 1.71a | 14.56 ± 1.86a | 15.64 ± 2.03a | 14.83 ± 1.57a | 13.44 ± 1.25a | 13.50 ± 1.44a |
F value | 141.346** | 338.484** | 77.619** | 2506.570** | 29.315** | 18.161* | 45.593** |
P value | 0.0013 | 0.0004 | 0.0031 | 0.0000 | 0.0124 | 0.0237 | 0.0066 |
Predators (B) | |||||||
Coccinella | 13.58 ± 0.95a | 10.29 ± 1.59a | 15.46 ± 1.72a | 15.79 ± 1.83a | 16.25 ± 1.63a | 15.63 ± 1.03a | 16.46 ± 1.17a |
Chrysoperla | 11.46 ± 1.55b | 11.38 ± 2.26a | 12.71 ± 2.53b | 14.38 ± 2.64a | 13.25 ± 1.89b | 12.04 ± 1.57b | 12.58 ± 1.70b |
Stethorus | 6.13 ± 0.59 c | 3.29 ± 0.49b | 5.04 ± 0.82c | 4.29 ± 0.79b | 5.96 ± 0.70c | 5.38 ± 0.66c | 5.75 ± 0.62c |
F value | 24.899** | 100.812** | 52.092** | 180.713** | 48.931** | 132.578** | 61.030** |
LSD at 5% | 2.373 | 1.346 | 2.305 | 1.437 | 2.332 | 1.392 | 2.138 |
P value | 0.0001 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 |
Treatments | |||||||
Control | 10.13 ± 1.25a | 9.08 ± 1.33b | 14.67 ± 1.80a | 14.54 ± 2.01a | 13.88 ± 1.79a | 13.25 ± 1.56a | 14.04 ± 1.81a |
Sulphur treated | 11.13 ± 1.29a | 3.46 ± 0.76c | 3.92 ± 0.80b | 5.04 ± 0.92b | 7.46 ± 1.04b | 7.75 ± 1.05b | 8.88 ± 1.21c |
Untreated second area | 9.92 ± 1.29a | 12.42 ± 2.33a | 14.63 ± 2.31a | 14.88 ± 2.60a | 14.13 ± 1.91a | 12.04 ± 1.44a | 11.88 ± 1.37b |
F value | 1.169NS | 85.637** | 234.577** | 101.773** | 32.172** | 38.261** | 18.493** |
LSD at 5% | – | 1.403 | 1.160 | 1.587 | 1.911 | 1.340 | 1.730 |
P value | 0.3221 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 |