Frequently Asked Questions
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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 Risks

News

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 >>

NADF Hardiness Zone Map
Find out the right tree to plant where you live MORE >>

Don't Move Firewood!

Camping Season is fast approaching. Please remember to not transport firewood. Tree-killing insects and diseases can lurk in firewood. These insects and diseases can't move far on their own, but when people move firewood they can jump hundreds of miles. New infestations destroy our forests, property values, and cost huge sums of money to control. MORE >>

National Tree Benefits Calculator
Make a simple estimation of the benefits individual street-side trees provide. 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. For more detailed information on urban and community forest assessments, visit the i-Tree website. MORE >>

What is an Arborist and How Can You Find One?
From Planet Green a Discovery Company 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

Recognizing Tree Risks 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