International Society of Arboriculture - Tree Care Information Brochures
This website provides 18 tree care information brochures covering the following topics: Why Hire an Arborist, Benefits of Trees, Buying High-Quality Trees, Insect and Disease Problems, Mature Tree Care, New Tree Planting, Tree Selection, Plant Health Care, Recognizing Tree Hazards, Trees and Turf, Avoiding Tree & Utility Conflicts, Tree Values, Why Topping Hurts a Tree, Pruning Young Trees, Pruning Mature Trees, Avoiding Tree Damage During Construction, Treatment of Trees Damaged During Construction, and Proper Mulching Techniques.
How to Prune a Tree
This brochure was developed by the USDA Forest Service (Northeastern Area State and Private Forestry) and provides detailed information on how, when & why to prune in order to produce strong, healthy and attractive plants.
American Forests is a world leader in planting trees for environmental restoration, a pioneer in the science and practice of urban forestry, and a primary communicator of the benefits of trees and forests.
Colorado Tree Coalition
The Colorado Tree Coalition is a non-profit organization leading Colorado's efforts to preserve, renew, and enhance community forests.
International Society of Arboriculture (ISA)
With over 10,000 members in thirty-five chapters worldwide, the International Society of Arboriculture is the largest and most influential tree care education and research organization in the world.
ISA - Rocky Mountain Chapter
The ISA-RMC is devoted to improving the care and understanding of trees in the Rocky Mountain Region, and to promoting professionalism in Arboriculture.
Plant-It 2020 is a nonprofit foundation dedicated to properly planting, maintaining and protecting as many indigenous trees as possible worldwide.
The National Arbor Day Foundation
The National Arbor Day Foundation is a nonprofit foundation helping people plant and care for trees and encourage the celebration of Arbor Day to advance global environmental stewardship for the benefit of this and future generations.
Trees, Water & People
Trees, Water & People is a non-profit organization dedicated to working cooperatively with communities and other organizations to establish and maintain sustainable forests, watersheds and wetlands while improving people's lives.
American Forests: Urban Forests
American Forests has conducted Urban Ecosystem Analyses in nearly 20 cities around the country documenting the loss of tree cover in our cities. These analyses report the value of trees not only in terms of their ecological benefits, but also in a language that decision makers understand—dollars.
Center for Urban Forest Research
Since 1992, this research center has provided reliable scientific evidence that the benefits of urban forests add real value to communities.
Urban Forest Ecosystems Institute
The Urban Forest Ecosystems Institute (UFEI) was developed by faculty in the Natural Resources Management Department (College of Agriculture at California Polytechnic State University, San Luis Obispo, California) to address the increasing need for improved management of the urban forests in California.