Informational table showing disease name, symptoms, pathogen/cause, and management of Gazania diseases. Disease Symptoms Pathogen/Cause Management Downy Mildew Dense white to grayish fungal growth develops on the undersides of leaves. This can be confused with powdery mildew and should be examined with a microscope. Plasmopara Discard infected plants. Apply a fungicide to the remaining plants. Pythium Root Rot Plants yellow, wilt, and die. Pythium Pot in sterile media. Keep hose ends off the ground. Discard-infected plants.

Prepared by Gary W. Moorman, Professor of Plant Pathology