shishigashira japanese maple
I have a well established shishigashira Japanese maple that up until a week ago was the picture of health. I noticed the leaves were curled and crunchy yet it does have new growth. If I run my hand backwards on the branch (toward the trunk) the leaves fall off very easily. I checked with a moisture meter and that was fine. I read previous entries on the forum with regard to this tree and it was suggested that it might be sun damage yet it has seen hotter days in this location in previous years. If it is some type of disease or infestation, what should I be looking to find?? How can I tell if it is on it's way out of if it can be salvaged?? HELP!!