What do you make of this trunk wound?

Tom Dunlap

Here from the beginning
Administrator
I got this picture from a guy on a woodworking forum.

What do you think might have caused the injury? He says that he doesn't mow near the tree or use a line trimmer.
 

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Tom,

It looks like a recent (1-3 year) Red Maple transplant.

It looks like it is planted too deep, no trunk flare. Hard to tell but it looks like there are 2 epicormic buds starting to break on the trunk which would indicate stress. My guess is that the damage down low is some mechanical injury inflicted somewhere between the nursery and the current location. I've pulled a lot of dead trees that had simalar injuries associated with large roots cut during digging.

Of course I could be completely wrong.
 
Is that Phytophthora? I've seen photos that look very similar. Usually it is a root pathogen but it can make leasions on tree trunks.

That is my GUESS.

Dan
 
Sun scald and/or frost cracking. It wouldn't happen to be an 'Armstrong' would it. In my humble opinion Acer x freemanii 'Armstrong' has got to be one the most susceptible of any maple cultivar.
 
I looked at the picture before reading any responses so I wouldn't be influenced.

Right away I thought basically the same thoughts Eric already stated.

A large transplant, damage done during the transplanting (10foot tall maple), also planted too deep. Damage didn't show up till a year or two later when the bark finally cracked due to the good tissue growth and dead tissue not growing.

How the heck do you guys have time to be on more than one forum.... Jeeeze.
 

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