| Treatment** | Number of rust pustules per cm²*** | Control efficiency (%) | |
| 14 d after inoculation | 28 d after inoculation | 14 d after inoculation | |
| T1 | 74.55a | **** | - |
| T2 | 43.09b | 73.81a | 42.2 |
| T3 | 0.24c | 4.36a | 99.7 |
| T4 | 0.45c | 2.26a | 99.4 |