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Symptoms: Pale green or water-soaked blisters or bumps erupt and turn brown or black, and may have a corky appearance. Photo by Plant Disease Clinic |
Oedema is caused by overwatering and is not contagious. |
Symptoms: Pale green or water-soaked blisters or bumps erupt and turn brown or black, and may have a corky appearance. Photo by Plant Disease Clinic |
| Causal organism: | N/A |
| Method of dispersal: | N/A |
| Infection point: | N/A |
| Control: | Reduce watering, but do not let the plants dry out completely. Water only in the morning and avoid wetting the leaves. Increase lighting, if possible, and maintain plants in well-ventilated room with good air circulation. Do not overcrowd plants. |
| Labeled fungicides: |
N/A |
| Comments: | Oedema develops when a plant absorbs more water than it can use. Excess moisture builds up in the plant, causing pale green or water-soaked swellings. Theses swellings may eventually turn yellow or brown, and have a crusty or corky appearance. Spots are often found on the undersides of leaves. |
| For More Information | Back to Houseplant Diseases | Back to Problems Affecting Multiple Hosts |
