Articles
Syngonium Diseases
Informational table showing disease name, symptoms, pathogen/cause, and management of Syngonium diseases.
Updated:
October 31, 2023
| Disease | Symptoms | Pathogen/Cause | Management |
|---|---|---|---|
| Bacterial Blight and Stem Rot | Very dark green spots engulf the leaf in a soft rot which smells foul. Infected tissue falls away giving the leaf a tattered appearance. When stems are infected, lower leaves wilt and die. | Erwinia | Purchase plants free of the disease. Discard infected plants and water in a manner that keeps the surface of the plants dry at all times. |
| Bacterial Leaf Spot | Translucent spots on leaf margins become dull green with bright yellow halos. Spot size and shape are limited by leaf veins. | Erwinia, Pseudomonas, Xanthomonas | Purchase plants free from the disease. Discard infected plants. Avoid overhead watering. Apply a bsctericide to protect plants. |
| Myrothecium Leaf Spot | Tan to dark brown leaf spots have concentric rings and fungal fruiting structures. | Myrothecium roridum | Do not apply excessive amounts of nitrogen fertilizer. Protect leaves from wounding. Apply a fungicide to protect plants. |
| Phosphorus Deficiency | Plants are stunted. Lower leaves have dead spots. | Lack of fertilization | Apply a balanced fertilizer solution. |










