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Science of Arboriculture

No matter where you are, keep up-to-date with the latest research-based information on tree care by listening to this podcast! Science of Arboriculture was developed by the International Society of Arboriculture to provide easily accessible educational talks by the world’s top researchers, educators, and practitioners. Subscribe to this ArborPod™ series to keep up with the fast-paced and evolving research!

If you have comments or a favorite topic in arboriculture that you would like to learn more about, please contact us at isa@isa-arbor.com.

This podcast series is brought to you by Bartlett Tree Experts

NameReleasedDescriptionAudio FileCEU Quiz
Lichen 101: What an Arborist Needs to Know August 21, 2015 Joe Murray, former college biology professor and certified arborist takes a look at the symbiotic life cycle, and benefits of lichen in today’s forests (A,Bs) Play

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Using Diversity to Reduce the Impact of Exotic Pests July 17, 2015 How diverse should an urban forest be to reduce the risk of decimating pests like the Emerald Ash Borer, or Dutch Elm Disease? Dr. John Ball presents an eye opening talk on the dangers lurking in many diverse forests today (A,M,Bm) Play

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Organic Pesticides and the Science behind their Efficacy June 19, 2015 Today’s arborists must often times balance the needs of the community against damage to the environment. Organic pesticides and herbicides are a choice, but just how effective are they? Dr. Linda Chalker Scott looks at the science behind rating their efficacy. (A,U,M,Bs) Play

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Lightning Impacts on Trees May 15, 2015 Dr. Kim Coder, professor of tree biology and health at the University of Georgia presents an in depth look at the threat, mitigation, and recovery from lightning strikes in both urban and rural forests. (A,U,M,Bs) Play

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Effects of Hurricane Sandy April 17, 2015 More than two years after Super Storm Sandy pounded the east coast of the U.S., recovery efforts are still on-going. Including efforts to bring the rural and urban forests back from incredible storm damage. Join David Johnson of Asplund Tree Expert Company as he looks at the damage done, and recovery attempts made in the hardest hit areas. (A,U,M,T,L,Bs) Play

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Tree Diversity and Water Quality February 20, 2015 One of the unseen benefits an urban forest brings to a community is storm water management. A healthy diversified urban forest can extend the life of a cities gray infrastructure over decades. Dr. Peter Donagh looks at the incredible job trees perform in handling storm runoff in a city. (A,U,T,M,L,Bs) Play

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Urban Trees are not Stand Alone Structures January 16, 2015 Dr. Alexia Stokes discusses the many external stressors that affect a tree’s growth and mechanical stability, and how trees naturally adapt themselves to thrive in different environments Play

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Managing Minimum Soil Policies for Urban Trees December 19, 2014 Urban trees have a substantially shortened life span due to a number of problems, not the least of which is limited access to uncompacted, aerated, fertile soil. The average 4’ X 4’ X 4’ tree pit has less than one tenth the rooting volume needed. L. Peter MacDonagh of Kestrel Design Group, discusses examples of minimum soil volume policies that give arborists the leverage they need to provide trees with adequate useable soil volume. (A,U,M,T,L,Bm) Play

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Solar Smart Arboriculture November 21, 2014 As solar energy gains an increasing presence in the developing world, the arboricultural industry has a key opportunity to work hand in hand with installers in both pruning strategies and tree selection. Dan Staley discusses solar smart strategies for today’s urban arborist.(A,U,M,T,L,Bp) Play

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Effects of Root Severance by Excavation on Two Urban Tree Species October 17, 2014 Dr. Alessio Fini of Florence University explains his study into the growth, physiology, and uprooting resistance change experienced by two Urban tree species with different levels of root severance. 96 pre-planted trees were studied over two growing seasons to track the results (A,U,M,T,L,Bs) Play

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A science Program for Urban Natural Resource Planning and Management September 19, 2014 Green cities are more livable cities, and yet the urban natural resources, and the means we have to manage them, are diminishing. Dr. Weston Brinkley takes a look at a current set of integrated Urban Forest Assessments looking for answers in today’s land management stewardship.(A,U,M,T,L,Bs) Play

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Soil Volumes for Urban Trees August 15, 2014 How much soil is enough for a healthy tree? That question has plagued urban foresters for years when planning urban tree planting programs. Nina Bassuk, Ph.D. professor from Cornell University looks at new techniques and new technology being employed in the search for answers. Play

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