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Originally Posted by newguy18  also the isa certified arborist guide and the fundamentals of general tree work.If you don't have those 2 your missing out. |
Newguy, these 2 books you cite (although I have not read either but I have been a CA since the beginning in 1992) if they have any correct information on pruning in them, would be based onwhat you would find in Shigo's book. It is based on detailed research (he) did and contains no conjecture or supposition. Just trying to be helpful, I am here to learn also.