Articles

Gazania Diseases

Informational table showing disease name, symptoms, pathogen/cause, and management of Gazania diseases.
Updated:
November 21, 2023
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 then die. Pythium Pot in sterile media. Keep hose ends off the ground. Discard-infected plants.

Prepared by Gary W. Moorman, Professor emeritus of Plant Pathology

Gary W. Moorman, Ph.D.
Professor Emeritus
Pennsylvania State University