For those interested in learning about and understanding treatments to trees
here is 3 web pages.
http://www.chesco.com/~treeman/
http://www.chesco.com/~treeman/treeinfo.html
http://www.chesco.com/~treeman/SHIGO/index.html
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Sincerely,
John A. Keslick, Jr.
Tree Biologist
http://www.chesco.com/~treeman
Beware of so-called TREE EXPERTS who do not understand TREE BIOLOGY!