Wachtel Tree Science

The WAA has been dedicated to our mission "To improve the practice of arboriculture and increase public appreciation of trees and urban forests." Over the years, this organization of commercial, municipal, utility and academic arborists has grown to include over 700 members with the like-minded goal of taking care of Wisconsin's trees. These members service Wisconsin by providing private and public arboriculture services, research and outreach activities. The WAA is a chapter of the International Society of Arboriculture which has representation in over 30 countries.

Tree Research and Education Endowment Fund (TREE Fund) is a 501(c)3 nonprofit dedicated to supporting scientific discovery and dissemination of new knowledge in the fields of arboriculture (the science of cultivating and managing trees in a landscape) and urban forestry. Knowledge gained from TREE Fund research directly impacts tree care practices, arborists' techniques and people's lives every day. Our work is made possible by the generous support of corporate, small business and community organization partners, as well as individual donors.

An ISA Certified Arborist is a professional who practices the science and art of managing individual trees. To become certified, an arborist must have a minimum of three years of relevant experience, successfully complete an examination and maintain the necessary continuing education units for re-certification every 3 years. Whether you would just like to learn more about the trees in your yard or need technical help to maintain your trees, reach out to an ISA Certified Arborist in your area. An ISA Certified Arborist® can help you care for your trees at any stage of their life, from helping with proper tree planting techniques to pruning a large tree in your yard.