Plant Diseases

Sooty Mold

Sooty Mold
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As you might guess from the name, this mold forms a black coating on the leaves of afflicted plants. The organism lives on a plant's natural secretions and on honeydew, the plant sap excreted by aphids, leaf-hoppers, mealybugs, psyllids, scale insects, and white-flies. Cool, moist conditions encourage sooty mold.

Target: All plants.

Damage: Sooty mold harms plants by blocking light to the leaves, thus hindering photosynthesis.

Control: Controlling honeydew-producing Insects, cleaning the plant.

Notes: You can wipe or hose the mold from plants; rain will also remove it.