| Options for experiments | Four days after infection | 10 days after infection | 15 days after infection | 18 days after infection |
| Pear seedlings |
|
|
|
|
| 1 | 12 ± 0.01 | 23 ± 0.041 | 26 ± 0.02 | 28 ± 0.03 |
| 2 | 12 ± 0.01 | 36 ± 0.037 | 39 ± 0.036 | 42 ± 0.04 |
| Apple seedlings |
|
|
|
|
| 2 | 1 ± 0.01 | 3 ± 0.01 | 5 ± 0.02 | 5 ± 0.02 |
| 3 | − | 1 ± 0.01 | 4 ± 0.02 | 6 ± 0.01 |
| Control | 8 ± 0.03 | 15 ± 0.02 | 21 ± 0.03 | 37 ± 0.04 |