black mold on gardenia - Knowledgebase Question

Palm Coast, Fl
Question by pugsgma
May 23, 2010
What to use to get rid of this mold?

Answer from NGA
May 23, 2010


If you can scrape the black substance off with your fingernail, or wash it off with water and a soft cloth, it's sooty mold. This is the result of insect feeding. When aphids, mealybugs or scale insects feed they exude a sticky substance called honeydew which weathers to a black coating. You'll need to identify and control the insect pests to stop the formation of sooty mold. Inspect the undersides of the leaves and the stems to see if you can find insect pests. If so, Insecticidal Soap should control them. Be sure to apply according to label directions.

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