Crepe Myrtle Diseases

My CM-trees leaves are falling – leaves are brown with black spots (dots) on both sides. The underneath of the leaves seem to be a shade lighter than the top. We have had ample enough rain. I have two other trees in the yard and they are OK. Can you advise?

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1 Comment To "Crepe Myrtle Diseases"

#1 Comment By Nikki On 05/20/2014 @ 4:40 pm

It sounds like you may have a pest like scale or aphids. Treat with a pesticide. I like neem oil as it is safe for people and pets and also treats the fungus that commonly accompanies these pests. Here is more info: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm ^[1] If you find no evidence of these pests, then it is likely Cercospora leaf spot (http://edis.ifas.ufl.edu/lh082 ^[2]) or black spot (common on roses but can affect other plants https://www.gardeningknowhow.com/ornamental/flowers/roses/black-spot-roses.htm ^[3], both of which are caused by fungus.

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URLs in this post:

[1] https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm

[2] http://edis.ifas.ufl.edu/lh082: http://edis.ifas.ufl.edu/lh082

[3] https://www.gardeningknowhow.com/ornamental/flowers/roses/black-spot-roses.htm: https://www.gardeningknowhow.com/ornamental/flowers/roses/black-spot-roses.htm

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