Any herbicide treatments to gravel areas around tree?
He's been using other herbicides, too, I bet.
Sure looks like herbicide damage.
''grooves in the trunk''
lower trunk area,Possible mechanical damage or a canker? Pic #1 is to small for a definate call.May also be an issue.
RoundUp can damage young tree trunks.
What do you use to fertilize your lawn?
It seems pretty weed free.
Ever hear of Johnson's 'Weed and feed'?
I'd bet $50. someone is putting down herbicides near that tree and lawn.
You're tree is showing classic herbicide damage and it's not coming from your neighbor's yard.
Are you spraying any thing on the tree?
Did you ever send better photos of the trunk area where the damage is?
Photos of any other plants in the area?
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