Your internet browser is not using current security protocols.
This will soon affect your ability to use the ISA website.
To update your security protocols, turn on TLS 1.2 in Advanced settings or contact your system administrator.
ISA Logo
About ISA  •  Find an Arborist  •  Newsroom  •  Job Bank  •  Contact Us  •  LOGIN
Join ISA
2017 March issue of AUF
Click on image above for a larger view.
  • 2017 March issue of AUF
CEUs are available for this product.

Does Modulus of Elasticity Vary? CEU Quiz


  • Item #:
  • Member Price: $0.00(US Dollars)
  • Non-member Price: $12.95(US Dollars)
  • Quantity:    
This item is free to members through March 2018. Until then, it is not available to non-members.
How far a limb flexes with or without leaves can be of great concern when those limbs overhang powerlines. Does an early snow or ice storm pose a more serious threat if it hits before a tree drops its leaves and enters its dormant stage? Gregory Dahle, Aaron Carpenter, David DeVallance, and Mo Zhou investigate.
(1 CEU A,U,Bs)

*CEUs for these quizzes may be earned only once during the life of your certification.

Related Products

Other products you might like


  • No Reviews

Click on image to close.

©International Society of Arboriculture 2009-2018
PO Box 3129 • Champaign, IL 61826, USA • +1.217.355.9411

Email comments and questions to ISA
Wednesday, January 17, 2018 11:41:29 PM (CST/ISA Headquarters Time)
Please click here to view our privacy policy.