Table 2
Reduction percentages % according to Henderson and Tilton’s formula as the effect of different treatment under natural conditions.
| Treatments/Pests | Period/days | T. urticae | E. orientalis | B. tabaci | P. Solenopsis | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| c | % | c | % | c | % | c | % | |||
| Humic acid | T1 | BT | 195 | 38 | 152 | 177 | ||||
| T2 | 3 | 32 | 85.45 | 10 | 63.91 | 72 | 35.61 | 110 | 73.43 | |
| T3 | 7 | 38 | 84.41 | 6 | 65.55 | 98 | 48.26 | 199 | 60.65 | |
| T4 | 14 | 58 | 80.5 | 8 | 57.89 | 167 | 55.36 | 261 | 55.36 | |
| Mean | 83.45 | 62.45 | 46.41 | 63.15 | ||||||
| C.N.Ps | T5 | BT | 208 | 39 | 122 | 127 | ||||
| T6 | 3 | 72 | 69.36 | 8 | 71.87 | 57 | 55.84 | 91 | 69.36 | |
| T7 | 7 | 64 | 75.3 | 5 | 72.03 | 59 | 61.36 | 135 | 62.79 | |
| T8 | 14 | 69 | 74.36 | 5 | 74.36 | 52 | 82.7 | 138 | 67.1 | |
| Mean | 73.0 | 72.75 | 61.79 | 66.63 | ||||||
| Abamectin | T9 | BT | 151 | 38 | 109 | 139 | ||||
| T10 | 3 | 24 | 85.9 | 4 | 85.6 | 28 | 75.7 | 47 | 85.5 | |
| T11 | 7 | 16 | 91.52 | 4 | 77 | 28 | 79.47 | 88 | 77.84 | |
| T12 | 14 | 9 | 96.1 | 6 | 68.42 | 30 | 88.8 | 214 | 53.39 | |
| Mean | 91.17 | 77 | 81.32 | 72.24 | ||||||
T1: before spraying humic acid; T2: 3 days after spraying humic acid; T3: 7 days after spraying humic acid; T4: 14 days after spraying humic acid; T5: before spraying C.N.Ps; T6: 3 days after spraying C.N.Ps; T7: 7 after spraying C.N.Ps; T8: 14 days after spraying C.N.Ps; T9: before spraying abamectin; T10: 3 days after spraying abamectin; T11: 7 days after spraying abamectin; T12: 14 days after spraying abamectin.
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