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Science of Arboriculture Podcasts

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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)


1 CEU
ISA Members: $9.95
Retail Price: $12.95
All prices in US Dollars

Taking care of an urban forest doesn’t mean you don’t have to deal with wildlife, and whether it’s protected species, or just ecological common sense, knowing how to retain wildlife will benefit the environment, and everyone in it. (A,T,L,Bp)


1 CEU
ISA Members: $9.95
Retail Price: $12.95
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A small dedicated group of researchers, tree climbers, and photographers set out to capture a singular image from the Waipoua forest: a complete unobstructed picture of a full grown forest conifer. Their efforts became the New Zealand Tree Project, compositing the final picture from thousands of individual shots, and producing a documentary video of this towering project. (A,Bp)


1 CEU
ISA Members: $9.95
Retail Price: $12.95
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Falls are a constant danger for arborists working at height. Understanding the limitations and differences between fall protection, fall arrest, and fall restraint systems can be the difference in going home safe, or taking a trip to the hospital. Ed Carpenter explains in this month’s Science of Arboriculture. (A,M,T,L,Bm)


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Using a tree inventory to list the species, health, age, and maintenance needs of a specific tree is easy, but when you’re dealing with an urban forest of thousands of trees, that’s where the science of Geomatics map making comes into play. (A,M,Bs)


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Species diversity in an urban forest is vital to surviving a disease threat. In this month’s Science of Arboriculture, we look at the efforts in Sweden to learn from painful lessons and create a cooperative template between arborists, municipalities, and universities in promoting species diversity. (A,M,Bp)


1 CEU
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In 2012 an ambitious project brought together arborists, municipal managers, and university researchers from three different countries to help establish standards for the young and growing arboricultural practice in the Baltic Sea region. Lina Juisoo explains the challenges and successes of Project Green Man. (A,M,Bm)


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The destructive potential of a medium-to-large falling branch is commonly acknowledged by arborists, but just how much force can a branch deliver to a target? John Goodfellow recaps a study for the utility industry attempting to answer that question in this month’s episode of Science of Arboriculture. (A,U,M,T,L,Bs)


1 CEU
ISA Members: $9.95
Retail Price: $12.95
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Ever more detailed and complex tree inventories provide a wealth of information to urban forest managers, and can help identify potentially unsound trees before they fail. But just how much of that information should be made available to the general public? Is there a downside to flagging potential risks? Jaroslav Kolarik reports on a program in the Czech Republic. (A,M,Bm)


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A three-day freeze with temperatures well below zero decimated the urban forests of Chihuahua Mexico, leaving the city with tens of thousands of dead trees to remove and replace. Carlos Van Der Menden reports on the recovery efforts. (A,M,Bm)


1 CEU
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Retail Price: $12.95
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The U.S. state of Florida covers thousands of square miles with climates ranging from temperate to tropical. Jason Smith, who specializes in emerging threats, takes a look at tree health issues in Florida, and beyond. (A,M,Bs)


1 CEU
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Vegetation management under and around powerlines is a never ending struggle, but with today’s satellite imagery and GIS, along with status reports from ground crews, near real-time workload planning and cost forecasting is possible. Barry Grubb of Florida Power and Light and Chris Kelly of Clearion Software report on advances in this technology. (A,U,M,Bm)


1 CEU
ISA Members: $9.95
Retail Price: $12.95
All prices in US Dollars
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