Kalenchoe Diseases

Informational table showing disease name, symptoms, pathogen/cause, and management of Kalenchoe diseases.
Kalenchoe Diseases - Articles


Phytophthora Root and Crown RotCrowns and roots have dark brown spots at the soil level. This spreads up the stem and plants wilts and die. Roots are killed.PhytophthoraPlant in pasteurized potting mix. Discard infected plants.
Powdery MildewTan, scabby spots form on leaves. These may become covered with white fungal growth or remain scabby.Sphaerotheca humiliApply a fungicide to protect plants.
VirusLeaves may be mottled, and have yellow spotting, dead flecks, line or ringspot patterns. Plants may be stunted and not flower.Top spotting virusPlant virus-indexed cuttings. Maintain good insect and mite control. Destroy infected plants. Do not take cuttings from infected plants.

Scabby, powdery mildew symptoms (top) and white fungal growth (bottom).

Prepared by Gary W. Moorman, Professor of Plant Pathology