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Arborist News

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Arborist News quizzes less than one-year old are available online for free to members only. Online quizzes over one-year old may be purchased by members for $9.95 and by non-members for $12.95. If you are certified and successfully pass the quiz with a score of 80% or higher, CEUs will be posted to your account within 48 hours.

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TitleCEUsPrice
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
All prices in US Dollars
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
All prices in US Dollars
February 2017 issue of Arborist News

PHC-Plant Health Care, 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. (Original story by Chelsi Abbot and A.D. Ali) (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, and whether cultural practices generally thought to help a growing tree, may in fact increase the stresses it faces. (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 in jeopardy 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: $0.00
Retail Price: $12.95
All prices in US Dollars
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: $0.00
Retail Price: $12.95
All prices in US Dollars
June 2016 issue of Arborist News

Injection is an extreme, but sometimes necessary step in addressing proper tree care. In this second of two part article 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
All prices in US Dollars
April 2016 issue of Arb News

Injection is an extreme, but sometimes necessary step in addressing proper tree care. 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
February 2016 issue of Arborist News

Bark is a complex and important tree tissue, by better understanding bark structure and function arborists will be prepared to interpret problems, and apply protective mechanisms in managing landscape trees.(A, Bs)

1 CEU
ISA Members: $9.95
Retail Price: $12.95
All prices in US Dollars
December 2016 issue of Arborist News

Lightning is an extremely powerful and pervasive force of nature, with an estimated 100 million strikes annually in North America. Authors Thomas Smiley, William Grahm jr., and Scott Cullen take a look at what can be done to protect trees, and the buildings and people around them. (A, T, L, Bp)

1 CEU
ISA Members: $9.95
Retail Price: $12.95
All prices in US Dollars
Arb New Quiz Oct 2015

Lightning is an extremely powerful and pervasive force of nature, with an estimated 100 million strikes annually in North America. Authors Thomas Smiley, William Grahm jr., and Scott Cullen take a look at what can be done to protect trees, and the buildings and people around them. (A, T, L, Bp)

1 CEU
ISA Members: $9.95
Retail Price: $12.95
All prices in US Dollars
August 2015 issue of Arborist News

In part two of their article on managing urban soils, the authors delve into soil modifications, and soil amendments, as well as tilling techniques that can help improve urban soils(A, M, Bp)

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