1. UC IPM
Black walnut trees (right) infected with the anthracnose fungus, <i>Marssonina</i> spp., are entirely defoliated, while infected Paradox trees (left) are only partially defoliated.
Black walnut trees (right) infected with the anthracnose fungus, Marssonina spp., are entirely defoliated, while infected Paradox trees (left) are only partially defoliated.
Credit: Themis J. Michailides