Table 2.
Effect of Polymyxin B1 and E2 against BLB under Greenhouse Conditions at 200 μg/ml.
| Treatment | Protection activity | Curative activity | ||
|---|---|---|---|---|
| Infection index (%) | Control efficiency (%) | Infection index (%) | Control efficiency (%) | |
| Polymyxin B1 | 39.1 ± 0.7 | 45.8 ± 1.4 | 46.3 ± 2.5 | 35.8 ± 2.3 |
| Polymyxin E2 | 42.4 ± 1.5 | 41.2 ± 3.0 | 49.0 ± 0.6 | 37.0 ± 0.5 |
| Zhongshengmycin | 47.0 ± 0.3 | 34.8 ± 1.4 | 50.6 ± 2.3 | 29.8 ± 1.8 |
| Bismerthiazol | 44.6 ± 1.6 | 38.0 ± 3.2 | 47.9 ± 0.3 | 33.5 ± 1.5 |
| CK | 72.2 ± 1.3 | / | 72.2 ± 1.3 | / |
CK is the blank rice group, its control efficiency is represented by the symbol "/".