Trees, Shrubs and Conifers: My Japenese Maple has a problem, 0 by JoParrott

JoParrott wrote:
This tree is about 5 years old-10' tall. It is getting crispy leaves on mostly the west side--I have tried bending branches and they are not brittle. There may be some wind damage but the affected side is not where the prevailing wind blows. I am stumped- no new fertilizers or chemicals--it gets watered along with the lawn with underground sprinklers. Daes anyone have any suggestions? I have looked for lesions or insect holes- nothing that I can see.