| 1. | Plant Pathology. a disease of plants, characterized by a black, sooty growth covering the affected parts, caused by any of several fungi. |
| 2. | any fungus causing this disease, as molds of the genera Capnodium, Phragmocapnias, and Scorias. |

| sooty mold n.
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sooty mold
plantplant disease characterized by splotchy black stain or coating on leaves, stems, and fruit, composed of dark fungal threads (Capnodium, Fumago, and Scorias species) that grow in flowing sap or on honeydew excreted by aphids and other sucking insects. The condition is unsightly but usually not harmful. Control includes spraying or dusting for sucking insects, washing off sticky coatings of sap or honeydew on plant surfaces, and avoiding the wounding of plants.
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