Particulars | Pre-treatment | Larvae/plant days after spray | Reduction in larval population | ||||
---|---|---|---|---|---|---|---|
3 DAS | 4 DAS | 7 DAS | 3 DAS | 4 DAS | 7 DAS | ||
SpobNPV (1.5 × 1012 OBs/ha) at 2 ml/l | 36.25 ± 0.01 | 13.10c ± 0.03 | 9.75c ± 0.01 | 1.33c ± 0.00 | 68.92b ± 0.24 | 78.59b ± 0.01 | 93.16b ± 1.12 |
Bacillus thuringiensis Btk at 2 ml/l | 35.50 ± 0.03 | 20.50b ± 0.00 | 13.25b ± 0.02 | 3.75b ± 0.02 | 51.36c ± 0.00 | 70.91c ± 0.30 | 80.71c ± 0.21 |
Profenophos 50 E.C. at 2 ml/l | 37.00 ± 0.00 | 9.55d ± 0.01 | 4.55d ± 0.01 | 0.75d ± 0.01 | 77.34a ± 0.41 | 90.01a ± 0.25 | 96.14a ± 2.01 |
Control | 38.00 ± 0.01 | 42.15a ± 0.00 | 45.55a ± 0.02 | 19.45a ± 0.01 | 0.00d ± 0.00 | 0.00d ± 0.00 | 0.00d ± 0.00 |
SE(d) | - | 0.019 | 0.023 | 0.002 | 0.339 | 0.365 | 1.647 |
CD (P = 0.05) | - | 0.044 | 0.051 | 0.004 | 0.739 | 0.803 | 3.628 |