1. UC IPM
Old wilted leaves with necrotic tips, small pale new leaves, and many small fruit on an avocado with Phytophthora root rot, caused by <I>Phytophthora cinnamomi.</I>.
Old wilted leaves with necrotic tips, small pale new leaves, and many small fruit on an avocado with Phytophthora root rot, caused by Phytophthora cinnamomi..
Credit: David Rosen