Table 2 Bio-efficacy of BKN20 5%AS in controlling shoot damage of tea plants from TMB in large-scale field study
Treatments | Concentration (ha) | Darjeeling | Dooars | ||
|---|---|---|---|---|---|
Pre-spray Shoot damage incidence (%)# | Shoot damage reduction (%)# | Pre-spray Shoot damage incidence (%)# | Shoot damage reduction (%)# | ||
BKN20 5%AS | 600 ml$ | 23.1 | 66.4b | 27.3 | 69.3b |
800 ml$ | 21.5 | 68.9b | 27.0 | 73.0bc | |
1000 ml$ | 21.3 | 79.8a | 26.6 | 79.4a | |
1200 ml$ | 20.9 | 81.6a | 28.0 | 81.9a | |
Beauveria bassiana 1.15%WP* | 2500 g | 23.1 | 62.5c | 28.5 | 66.6b |
Thiamethoxam 25%WG | 120 g | 20.4 | 66.7b | 28.5 | 70.1b |
F value | – | 8.4 | 9.5 | 10.2 | 12.3 |
p value | < 0.0001 | < 0.0001 | < 0.0001 | < 0.0001 | |