gardenia bush - Knowledgebase Question

port richey, Fl
Question by lwalker356
June 17, 2009
what can i use to keep the leaves from getting black on parts of gardenia bush

Answer from NGA
June 17, 2009


If just the tips of the leaves turn black, it is the result of temperature changes or a possible fungal infection. Prune off the affected leaves to remove any fungal spores and also open your plant up to better air circulation. If there is a powdery coating on the surface of the leaves, it is called sooty mold and is the result of insect feeding. Inspect your plant for signs of aphids, mealybugs or scales. These pests excrete a sticky substance called honeydew which falls onto the leaves below and turns black. If you control the insect pests, the sooty mold will weather away. Best wishes with your gardenia.

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