Treatment | Concentrations (ml/l) | Percent reduction over control in adults of Bemisia tabaci per three leaves *(mean ± SE) after different sprays | |||
---|---|---|---|---|---|
1st spray | 2nd spray | 3rd spray | Overall reduction (%) | ||
Beauveria bassiana (1 × 109 CFU/ml) | 10 | 36.3 ± 7.8d | 47.8 ± 8.2b | 58.5 ± 6.7b | 47.5 ± 6.4b |
15 | 41.5 ± 6.6bcd | 50.7 ± 5.8b | 62.3 ± 3.3b | 51.5 ± 6.0b | |
Lecanicillium lecanii (1 × 109 CFU/ml) | 10 | 40.8 ± 6.4bcd | 50.5 ± 9.5b | 64.9 ± 3.4b | 52.1 ± 7.0b |
15 | 45.4 ± 7.8bcd | 54.5 ± 7.3b | 66.7 ± 6.8b | 55.5 ± 6.2b | |
Metarhizium anisopliae (1 × 108 CFU/ml) | 10 | 35.6 ± 9.3d | 46.3 ± 8.8b | 57.9 ± 11.0b | 46.6 ± 6.4b |
15 | 39.8 ± 10.5cd | 45.7 ± 12.2b | 57.7 ± 11.8b | 47.7 ± 5.3b | |
Neem Baan (1% W/W) | 10 | 61.0 ± 3.3abc | 83.9 ± 3.7a | 93.1 ± 1.8a | 79.3 ± 9.5a |
15 | 63.0 ± 4.0ab | 87.0 ± 1.0a | 94.0 ± 1.6a | 81.3 ± 9.4a | |
Malathion 50 EC | 4.0 | 74.1 ± 3.2a | 88.7 ± 3.8a | 98.4 ± 1.2a | 87.1 ± 7.1a |
F values | 3.9 | 6.4 | 7.0 | 5.3 | |
P | 0.008 | 0.001 | < 0.001 | 0.002 |