Treatments | Before spray | After 24 h | After 72 h | After 168 h | After 336 h | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | CPD (%) | EF (%) | N | CPD (%) | EF (%) | N | CPD (%) | EF (%) | N | CPD (%) | EF (%) | ||
Matrine | 23.6a | 19.3ab | − 18.3 | 39 | 4.0a | − 83.0 | 87 | 3.6a | − 84.5 | 69 | 1.3a | − 94.3 | 97 |
Spintoram | 35.6a | 14.3a | − 59.8 | 46 | 19.0ab | − 46.7 | 49 | 5.0a | − 85.9 | 81 | 2.0a | − 94.3 | 99 |
Azadirachtin | 81.3a | 41.0ab | − 49.5 | 46 | 17.0ab | − 79.0 | 81 | 14.0a | − 82.7 | 82 | 10.6a | − 86.8 | 86 |
Custard apple | 74.3a | 45.6b | − 38.5 | 31 | 3.6a | − 95.0 | 95 | 2.0a | − 97.3 | 98 | 6.3a | − 91.4 | 93 |
Control | 27.6a | 31.6ab | 15.8 | 39.3b | 43.9 | 32.0b | 17.0 | 33.3b | 21.9 | ||||
Significance level | F = 2.10; df = 4; P ≥ 0.05 | F = 4.43; df = 4; P ≤ 0.05 | F = 4.38; df = 4; P ≤ 0.05 | F = 13.8; df = 4; P ≤ 0.01 | F = 30.8; df = 4; P ≤ 0.01 |