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Durham resident Dr. Alex Shigo is one of the foremost experts on trees. He spent his career as a tree scientist with the Forest Service. Now in retirement, he?s very active as a writer and lecturer. His many books are widely used by foresters, but he?s also created controversy with some of his views on tree care. He talks about his career and tell us why it?s so important to touch a tree.
More at www.chesco.com/~treeman/treeinfo.html