Category Soilborne Diseases Subject Avocado Root Rot (Phytophthora cinnamomi) Title Phytophthora cinnamomi (avocado root rot) replant trial Description Avocado replant trial with potential resistant rootstock material. Foreground, old decline trees and background near UC researchers, replanted resistant trees. This trial was a landmark demonstration of the potential for resistant rootstocks to control avocado root rot. Embacadero Ranch, Goleta, CA. Location Goleta, CA Date July, 1985 Source George E. Goodall Larger Picture 1000 x 673 (127 kb)