Shriveled leaves on my Japanese maple

Question

The leaves are predominantly green, not red, and the ends of the leaves are turning brown and shriveling.

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Answer 1

It appears that it is remaining wet for too long without a dry out period. It may have contracted a fungal infection. If it is not possible to water less due to weather then you will have to be vigilant with a fungicide. This article will help: https://www.gardeningknowhow.com/.../using-fungicides-in-garden.htm