Douglas Airhart is a Professor of Horticulture in the School of Agriculture at Tennessee Tech University, Cookeville. He teaches production horticulture (landscaping, nursery, greenhouse), turf, and provides FFA training and contests in nursery and floriculture. He serves on the Cookeville Tree Board. He is a Certified Arborist, Municipal Specialist; has managed the Arboretum Certification Program of the Tennessee Urban Forestry Council; and provides assistance to regional Tree Boards. He has published articles on consumer horticulture and tree care technologies, and has coordinated grant projects about tree care and maintenance. He invites you to visit his website at www.tlcfortrees.info.