The Q&A Archives: Disease on crepe myrtles

Question: My mom has crepe myrtles and the leaves have turned black, the plant is in bad shape. Hope you can answer as to what can be done to counteract this fungus or disease. She lives in Stockton Georgia, not sure how much native tree (pine trees) have to play in upkeep.

Answer: The black may possibly be a fungal infection growing as a result of insect damage, possibly caused by aphids feeding at the tips of the new growth. It is difficult to diagnose this type of problem long distance, however. I would suggest she consult with her local county extension and/or a professionally trained, certified nurseryman for help in diagnosing the problem more specifically. Then once you know that, treat accordingly. They may appreciate an overall photo of the plant plus some samples. If it is something that requires a chemical control, the county extension will have the most up to date recommendations as to what to use and how/when is best to apply it. I hope this helps.

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