Resources

December 2002 ISA CEU article, Tree Risk Assessment & Tree Mechanics by Ed Hayes.

Urban Tree Risk Management: A Community Guide to Program Design and Implementation; U.S. Forest Service, 2003   www.na.fs.fed.us/spfo/pubs/uf/utrmm/

Useful Diagnostic Equipment for Tree Risk Assessment:

ML Resistograph, www.imlusa.com/

Picus sonic tomograph, www.argus-electronic.de/index.php/en/picus-sonic-tomograph

Air Spade, www.air-spade.com/

Tree Radar (roots), www.treeradar.com/

Many other useful publications are available at the ISA and TCIA bookstores. Please find those links below.

ISA: www.isa-arbor.com

Tree Care Industry Association: tcia.org/