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 | 40.0 ± 3.2c | 51.6 ± 4.7b | 61.4 ± 6.7b | 51.0 ± 6.2c |
15 | 43.6 ± 1.8c | 51.7 ± 10.4b | 65.4 ± 1.1b | 53.6 ± 6.4c | |
Lecanicillium lecanii (1 × 109 CFU/ml) | 10 | 40.5 ± 2.1c | 53.4 ± 5.8b | 64.6 ± 7.1b | 52.8 ± 7.0c |
15 | 45.3 ± 2.3c | 56.7 ± 3.4b | 69.2 ± 4.3b | 57.1 ± 6.9bc | |
Metarhizium anisopliae (1 × 108 CFU/ml) | 10 | 36.3 ± 1.2c | 47.9 ± 2.6b | 60.3 ± 5.2b | 48.2 ± 6.9c |
15 | 40.0 ± 1.9c | 49.2 ± 5.2b | 62.8 ± 5.8b | 50.7 ± 6.6c | |
Neem Baan (1% W/W) | 10 | 59.1 ± 5.7b | 82.6 ± 1.2a | 92.4 ± 0.2a | 78.0 ± 9.9ab |
15 | 61.9 ± 6.0b | 85.2 ± 1.4a | 94.2 ± 2.2a | 80.4 ± 9.6a | |
Malathion 50 EC | 4.0 | 77.1 ± 2.4a | 91.0 ± 0.8a | 98.9 ± 1.1a | 89.0 ± 6.4a |
F values | 16.4 | 12.9 | 12.5 | 4.4 | |
P | < 0.001 | < 0.001 | < 0.001 | 0.004 |