Alex Shigo

Alex L. Shigo (May 8, 1930 – October 6, 2006) was a biologist, plant pathologist with the United States Forest Service whose studies of tree decay resulted in many improvements to standard arboricultural practices.

He served as a clarinetist with the United States Air Force Band in Washington DC for four years during the Korean War.

After his service, he earned a Bachelor of Biological Science degree at Waynesburg College in Pennsylvania, then a PhD in Plant Pathology at West Virginia University in 1960.

Shigo was known for his digressive and philosophical style when writing and speaking, and for his trademarked phrase, “touch trees,” with which he autographed his books.

Shigo produced over 270 publications,[4] including many research papers, books, pamphlets, CDs, and DVDs.