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

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 cult

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 cultu

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

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. (Original story by Authors Christine Balk and A.D. Ali) (A, M, Bs)

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 tre

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. (Original story by Authors E. Thomas Smiley

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.(Original story by Jeffery Dawson) (A, Bs)

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 buildin

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 buildin