|
Score |
Symptoms observed |
|
|
|
|
0 |
no galls |
|
1 |
1-2 galls |
|
2 |
3-10 galls, mostly small
(< 2 mm in diameter) |
|
3 |
>10 galls, most in clusters |
|
4 |
many galls,
regularly distributed |
|
|
|