Crepe Myrtle Tree

The crepe myrtle trees at my office this year have developed a black coloring on the top 12″ to 18″ of trunk. The trees are about 6 years old and well established and have never had this problem before. Last year in September, we had a flood in our area and they were standing in about 12″ of water for a couple of days. Would this have anything to do with the black coloring or is this a mold that we can spray with a fungicide and get rid of?

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1 Comment To "Crepe Myrtle Tree"

#1 Comment By Nikki On 03/07/2014 @ 9:11 pm

It sounds like it is either sooty mold or sooty canker. These articles will have more information: https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm ^[1], https://www.gardeningknowhow.com/ornamental/trees/tgen/tree-disease-identification-sooty-canker-fungus.htm ^[2] Both can be treated with a fungicide, but if it looks more like sooty canker than sooty mold, the trees may need professional help to recover.

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[1] https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm: https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm

[2] https://www.gardeningknowhow.com/ornamental/trees/tgen/tree-disease-identification-sooty-canker-fungus.htm: https://www.gardeningknowhow.com/ornamental/trees/tgen/tree-disease-identification-sooty-canker-fungus.htm

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