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
ArborPod

Subscribe to this podcast.

Science of Arboriculture

What Does Science Say About Pruning Mature Trees?

What are the effects of pruning on mature trees? Linda Chalker-Scott presents the current state of science on the physiology of aging trees, which can be used to predict the impacts of conventional and retrenchment pruning on tree health. (A,M,T,L,Bs)

This podcast series is brought to you by Bartlett Tree Experts

 Released Audio FilePurchase Quiz
October 20, 2017 Download Purchase Quiz

©International Society of Arboriculture 2009-2017
PO Box 3129 • Champaign, IL 61826, USA • +1.217.355.9411

Email comments and questions to ISA
Thursday, November 23, 2017 10:40:26 AM (CST/ISA Headquarters Time)
Please click here to view our privacy policy.