| Category | Soilborne Diseases |
| Subject | Avocado Root Rot (Phytophthora cinnamomi) |
| Title | Avocado Root Rot (Phytophthora cinnamomi) |
| Description | G-22 in rootstock plot at Rancho Cuesta, Carpinteria, CA. Dead Topa Topa tree in foreground. |
| Location | Carpinteria, CA |
| Date | May, 1973 |
| Source | George E. Goodall |
| Larger Picture | 1000 x 671 (76 kb) |
