Dr. Alex L. Shigo authored and co-authored over 300 scientific and technology transfer publications. View some of them online.Read More
Dr. Alex Shigo’s study of tree biology led to a broadened understanding of compartmentalization of decay in trees.Read More
We've photographed all of Dr. Shigo's wood samples and placed them online for you to rotate, zoom and view in detail.Read More
Dr. Shigo's study of tree biology and ideas eventually led to many changes and additions to commercial tree care practices and the now accepted way to prune a tree. This site, sponsored by The Davey Tree Company, Southern Chapter of International Society of Arboriculture and the USDA Forest Service is a collection of his photos, wood samples and publications.
More About the Shigo Collection
