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Category | Soilborne Diseases History, Distribution and Uses |
Subject | Avocado Root Rot (Phytophthora cinnamomi) People |
Title | Evaluating avocado rootstock trial |
Description | Don Petty, Jr. (left) and Howard Ohr (right) rating Petty rootstock trial, Carpinteria, CA. |
Location | Carpinteria, CA |
Date | October, 1979 |
Source | George E. Goodall |
Larger Picture | 1000 x 674 (91 kb) |
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