I just saw this post. The holes are at the very base of the tree. There are no caps in them. I didn't notice any loose bark.Don't know why this occurred to me today, and not earlier... did they put black plactic (or perhaps black with yellow caps) plugs in the holes they drilled? if so, tap above those gently to see if the bark is lose or tight. If those plugs are not set right the injection can blow off some bark. if that happened to all of the plugs, you tree would have a hard time getting enough water to the leaves. Are the holes are the very bottom of the tree?
He keeps telling me I have leaf rust. I guess he has to come to with something.hmmm
How long has it been since the stress was noticed and when was the treatment applied and what is his time-line for improvement?
Get him back again and ask his professional opinion of why you haven't seen any improvement and what he would do.
Ask him if your soil near it is mostly clay or has better aeration. Like stated, too much water in clay type soil can drown the roots.(but typically you'd see other trees in proximity having similar stresses if that was the case).
looks like tree should make itThe tree was treated with emamectin benzoate. I just talked to the arborist. He said he would be here this afternoon to look at the tree, but I have heard that before. Sorry if I did these pics wrong. Like I said, not good with computers. Not all the leaves have fallen, but I would say over 50 percentView attachment 438573 View attachment 438574 View attachment 438573 View attachment 438573
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