Dr. Tom Smiley is an arboricultural researcher at the Bartlett Tree Research Laboratory in Charlotte, NC and an adjunct professor of Urban Forestry at Clemson University. Dr. Smiley is active in the arboriculture industry and has co-authored the ISA’s Best Management Practices for Tree Risk Assessment, Lightning Protection, Fertilization, Support Systems, Soil Mangement and Construction Management. His research has lead to improved methods of increasing sidewalk longevity near trees, protecting more trees from lightning damage, improving tree root growth in compacted soil using the patented Root Invigoration process, and predicting tree failures.