Problems with Japanese Maple Leaves

I have had these trees for ten years and all of a sudden the leaves look like this. Can you help?

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2 Comments To "Problems with Japanese Maple Leaves"

#1 Comment By Downtoearthdigs On 06/22/2016 @ 5:07 pm

This appears to be Acer Leaf Scorch.
The link below has more information.

https://www.rhs.org.uk/advice/profile?PID=591 ^[1]

https://www.gardeningknowhow.com/ornamental/trees/japanese-maple/japanese-maple-problems.htm ^[2]

#2 Comment By vhuxley On 06/22/2016 @ 5:19 pm

Thank you for the information about leaf scorch. These actually started as almost uniform beige dots on several of the leaves??

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[1] https://www.rhs.org.uk/advice/profile?PID=591: https://www.rhs.org.uk/advice/profile?PID=591

[2] https://www.gardeningknowhow.com/ornamental/trees/japanese-maple/japanese-maple-problems.htm: https://www.gardeningknowhow.com/ornamental/trees/japanese-maple/japanese-maple-problems.htm

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