Dr. Daniel Marion and his son operate a personalized, family run organization that offers holistic tree care for residential and commercial clients, as well as for national parks and government facilities. Dr. Dan has more than 36 years of experience and expertise in the tree care and tree preservation field. In addition to being active in his private practice, he is a Professor of Tree and Ornamental Plant Health at the State University of New York – Finger Lakes. Dan Marion Jr., a certified arborist and ISA lecturer, has worked in the practice since his college days. He has over 20 years of professional experience working with tree disease diagnosis, health management, and treatment.