Contact Information

Campus address
About
Elected world President of the International Society of Arboriculture (ISA), past President of the Southern Chapter of ISA (9 states), past President of the international Arboriculture Research &
Education Academy (AREA), and founding member and past President of the Georgia Urban Forest Council.
Appointed to the USDA-Secretary’s NUCFAC (National Urban & Community Forestry Advisory Council), advising on urban and community forestry issues representing the nation's educational institutions.
First person to receive four of ISA’s competitive world awards – the Shigo, Harris, Lilly, and Merit awards.
Granted the Arbor Day Foundation’s highest award -- the J. Sterling Morton award.
Author of over 500 technical publications and articles.
International lecturer and consultant to private citizens, corporations, attorneys, and communities
on tree biology & health care, tree risk, tree appraisal, abiotic tree stress, lightning & tree protection, storm damage, biomechanics, climate change & trees, and community forest ecology.
Outreach programming and educational product development in tree health care, technical arboriculture, abiotic tree & site stress, tree morphology, taxonomy & physiology, tree biology, lightning & tree protection, storm damage & risk assessment, tree biomechanics / structural mechanics, tree risks and hazards, tree appraisal & asset assessment, essential element diagnosis & life-staged based fertilization, climate change & tree impacts, and community forest ecology.