Phenotype | Score | Symptoms |
---|---|---|
Resistant | 0 | No visible symptoms |
 | 1 | Dark-brown, non-sporulating lesions |
 | 2 | Expanding, dark-brown, non-sporulating lesions |
Susceptible | 3 | Small circular or diamond-shaped lesions with sporulating areas |
 | 4 | Large expanding lesions with sporulating areas |