I found my Candycrisp apple looking like this today.
Various cracks in bark of the trunk running vertically lower down.
Is the damage on the southwest side of the tree?
Wow, I have never seen this before!
I have seen this before but never knew what caused it though.
I wonder if those green dust things are a fungus or if they are a eriophyid mite. You would need a 100x microscope to check it out.
Perhaps bag it up and take the sample to the State Extension Agency. See if they can help you.
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