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Arborist News

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AN 2018 February

The survival of tree-dependent wildlife species is influenced by how arborists manage trees, even in urban areas. In this article, Brian French explores wildlife considerations when making care decisions about trees. (A,M,Bp)

1 CEU
ISA Members: $0.00
Retail Price: $12.95
All prices in US Dollars
AN 12 2017

Learn about conducting tree inventories in this issue’s CEU article by Jerry Bond. This article explores setting tree inventory objectives, the benefits and costs of tree inventories, and the resources needed to be successful. (A,M,Bm)

1 CEU
ISA Members: $0.00
Retail Price: $12.95
All prices in US Dollars
Arborist News

Learn more about palms in this second part of Palms: Woody Giants of the Monocots. This article explores symptoms of nutrient deficiency and other abiotic and biotic factors, including insects and diseases. (A,T,L,M,Bp) 

1 CEU
ISA Members: $0.00
Retail Price: $12.95
All prices in US Dollars
AN cover Aug 2017

Are palms considered trees? That depends on whether you’re asking a botanist, ecologist, or forester. But no matter the specific definition used, as an arborist you may have to deal with palms. In Part 1, A.D. Ali and Leonard Burkhart, Jr. examine palm identification and pruning. (A,T,L,M,Bs)

1 CEU
ISA Members: $0.00
Retail Price: $12.95
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AN June 2017 cover

In this second podcast on Root Pruning, the authors look into selective versus non-selective pruning, dealing with stem-girdling roots, and how pruning can effect a tree’s long term health and stability. (A,Bs)

1 CEU
ISA Members: $0.00
Retail Price: $12.95
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April cover

Roots are a vital component to any tree's health. Recognizing and understanding the types of roots, and how they function is the first step in good root management. (A, Bs)

1 CEU
ISA Members: $0.00
Retail Price: $12.95
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February 2017 issue of Arborist News

Plant Health Care (PHC) is a holistic approach to evaluating a tree’s condition, taking into consideration both the plant and its environment instead of focusing on any single component such as insect pests or disease-causing organisms. (A,Bs)

1 CEU
ISA Members: $0.00
Retail Price: $12.95
All prices in US Dollars
2016 December issue of Arborist News

The idea that rapidly growing trees are the most pest resistant and stress tolerant is highly ingrained. But is that always true? Trees face both abiotic and biotic attacks daily, and studies are beginning to question just how resistant they are, and whether cultural practices generally thought to help growing trees may in fact increase the stresses they face. (A,Bs)

1 CEU
ISA Members: $0.00
Retail Price: $12.95
All prices in US Dollars
October 2016 issue of Arborist News

The fate of a tree can be jeopardized in all phases of a construction project, and the highest levels of success are achieved when the arborist is brought in as early in the process as possible. This month’s CEU article looks at the planning and design phases of managing trees during construction. (A,M,Bm)

1 CEU
ISA Members: $9.95
Retail Price: $12.95
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2016 August issue of Arborist News

Every tree has its own system for moving water and nutrients through stem and branch. Christine Balk and A.D. Ali explore this natural plumbing in trees. (A,M,Bs)

1 CEU
ISA Members: $9.95
Retail Price: $12.95
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June 2016 issue of Arborist News

Injection is an extreme, but sometimes necessary, step in addressing proper tree care. In this second part of Tree Injection, Shawn Bernick and E. Thomas Smiley examine the pros and cons to be taken in consideration when contemplating injection sites on a tree. (A,M,Bp)

1 CEU
ISA Members: $9.95
Retail Price: $12.95
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April 2016 issue of Arb News

Injection is an extreme, but sometimes necessary, step in addressing proper tree care. In Part One, Shawn Bernick and E. Thomas Smiley examine the pros and cons to be taken in consideration when contemplating tree injection. (A,M,Bp)

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