Gillette/Duling Tree & Landscape

John Z. Duling opened Duling Tree Expert Company in 1954. John was a nationally-known and highly respected figure in the field of arboriculture. As past president of the International Society of Arboriculture, the Tree Care Industry Association, and the Indian Arborist Association, his expertise and knowledge in the industry made him a well-known and sought after speaker for many years. He ran Duling Tree Expert Company until his retirement in 1992.