Trees Are Good - Frequently Asked Questions

Frequently Asked Questions

What is the International Society of Arboriculture (ISA)?

What is the difference between an arborist and a certified arborist?

Why should I hire an arborist?

How do I find a certified arborist near by me?

How do I contact the International Society of Arboriculture

How do I find information about tree care?

Why are trees beneficial?

What type of tree should I buy?

How should I plant my tree?

How often does my tree need care?

What is pruning a tree?

What is topping a tree?

What is mulching?

What should I do if I think my tree has insect and/or disease problems?

Can trees be hazardous?

Home > Frequently Asked Questions > What is the International Society of Arboriculture (ISA)?

What is the International Society of Arboriculture (ISA)?

A: The International Society of Arboriculture (ISA) was founded in 1924 and has served the tree care industry for over seventy years as a scientific and educational non-profit organization. ISA supports tree care around the world and is dedicated to the care and preservation of shade and ornamental trees. This organization continues to be a dynamic medium through which arborists around the world share their experiences and knowledge for the benefit of society. Aligned on many fronts with other green organizations, ISA is working hard to foster a better understanding of trees and tree care through research and the education of professionals as well as global efforts to inform tree care consumers.


	News

	Nominate a True Professsional of Arboriculture ISA Announces search for the 2010 True Professionals of Arboriculture Do you know a tree care provider who is a true professional of arboriculture? If so, you are encouraged to nominate them for the ISA True Professionals of Arboriculture Recognition award. MORE >> What is an Arborist and How Can You Find One? From Planet Green a Discovery Company MORE >> Green Spaces Improve Health (BBC News) There is more evidence that living near a 'green space' has health benefits. MORE >> National Register of Big Trees Big trees are symbols of all the good work trees do for the quality of the environment-and our quality of life. MORE >> National Tree Benefits Calculator The Tree Benefit Calculator allows anyone to make a simple estimation of the benefits individual street-side trees provide. This tool is based on i-Tree’s street tree assessment tool called STRATUM. With inputs of location, species and tree size, users will get an understanding of the environmental and economic value trees provide on an annual basis. The Tree Benefit Calculator is intended to be simple and accessible. As such, this tool should be considered a starting point for understanding trees’ value in the community, rather than a scientific accounting of precise values. For more detailed information on urban and community forest assessments, visit the i-Tree website. MORE >> Why Leaves Really Fall Off Trees (From NPR)– You think you know why leaves fall off trees. Well, you're wrong. It's not the wind. It's not the cold. MORE >>

"Woodman, spare that tree! / Touch not a single bough! / In youth it sheltered me, / And I'll protect it now." - General George P. Morris


	Resources

	Legends of Arboriculture This video (VHS) features hundreds of historic photos and clips that reflect the history of arboriculture. Book, $59.95; Video, $24.95. Both for $74.95 Available through the ISA Web Store


		© International Society of Arboriculture 2009 P.O. Box 3129, Champaign, IL 61826 Email comments & questions to isa@isa-arbor.com