So, I got this 6 foot long by 4 foot diameter hollow hunk a wood that I was "blessed with" last winter. I drug it out back cuz I was sick of looking at it and wasn't sure what I was going to do about 1000 pounds of hackberry that was full of quick crete and dirt. There is a good amount of farwood left in that old trunk but with all the derbiss in it I dull a chain so fast it aint funny. Gonna take a power washer to the old cob and clean it out and get it gone once and for all. I aint ever power washed a tree before but there is a fisrt time for every thing I guess.
Let us know how it works but with quick crete in there, I'd probably just haul it back to the woods or fill in a hole that needs some big time filling.