Help with Monterey Oak

[southtx53]

My first post.

I live in South Texas. I had recently had two Monterey Oak trees planted in the backyard along with some grass sod. We have noticed some of the leaves on one of the trees are changing colors with some turning brown and brittle and others with brown tips. I am curious if this is because of overwatering since we have to water the sod daily. Any help or suggestions would be greatly appreciated.

 

[pdqdl]

Overwatering seems rather unlikely, although too much moisture in the tree's environment might increase the problems observed. That looks like a fungal disease to me, although I am not at all well informed about the diseases of Monterey oaks in southern Texas.

When you drown the roots of a tree, it will produce a "whole tree" decline, rather than leaves adversely affected here and there. You have healthy leaves side by side with dead leaves, and that is not usually associated with vascular problems caused by overwatering.