| black knot |
Apiosporina morbosa |
3 |
| black rot |
Ceratocystis fimbriata |
1 |
| Cryptosphaeria canker |
Cryptosphaeria ligniota |
4 |
| Cytospora cankers |
Cytospora spp. |
1 |
| Endothia fungus |
Endothia singularis |
3 |
| Hypoxylon canker of aspen |
Entoleuca mammata |
1 |
| Siberian elm canker |
Botryodiplodia hypodermia |
1 |
| sooty-bark canker |
Encoelia pruinosa |
6 |
| Thyronectria canker |
Thyronectria austroamericana |
2 |