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Sep 04

Common Pest Problems - Sooty Mold

Posted on September 4, 2018 at 8:29 AM by Colin Heyne

Sooty mold

Sooty mold is the name given to a group of several species of fungi that grow on honeydew secretions on plant parts and other surfaces. The fungi growth is dark and threadlike, making it appear as though the object it grows on is covered with soot, hence the name sooty mold. While sooty mold doesn't directly infect plants, it can cause harm to the plants it lives on by reducing available photosynthetic activity. When the sooty mold is covering plant material, sunlight penetration can be inhibited. This can lead to stunted growth or premature leaf drop. For more information on sooty mold and possible treatment options visit the University of California IPM website.