Frequently Asked Questions
Skip Navigation LinksHome > Frequently Asked Questions > Can trees be hazardous?

Can trees be hazardous?

A: Trees are essential to our world, offering a wide range of benefits to our environment. However, trees become hazardous liabilities if they fall and injure people or damage property. Proper constant maintenance will help prevent and identify when a tree becomes dangerous. Evaluating the seriousness of a trees condition is best done by a professional ISA Certified Arborist.

More Information:

Recognizing Tree Hazards

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 >>


Stand Tall and Proud. Sink your roots deeply into the Earth. Reflect the light of a greater source. Think long term. Go out on a limb. Remember your place among all living beings. Embrace with joy the changing seasons, for each yields its own abundance: the Energy and Birth of Spring; the Growth and Contentment of Summer; the Wisdom to let go of leaves in the Fall; the Rest and Quiet Renewal of Winter. - Ilan Shamir, "Advice From a Tree"

Resources

Recognizing Tree Hazards Brochure

Available through the ISA Web store

Protect Your Investment, Hire An Arborist
...Tree Removal-Arborists can help determine whether or not a tree should be removed, though usually this is a last resort. Arborists have the skills and equipment to safely and efficiently remove trees. Tree removal is dangerous and should be done by a professional. MORE >>

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