The general identification terms of sapwood and heartwood are used in many aspects of the plant sciences, especially in arboriculture. These terms are used loosely by many practitioners to identify the outer portion of a branch or stem and the [...]

Having worked for the same tree company for 42 years – starting when he was 19 – Tony Wilber has a steady handle on tree work, safety and crew training. But, he says, “Every day is a learning experience.” [...]

The primary management focus for sustainable long-lived trees is to promote healthy growth that supports vigorous plant processes with adequate oxygen, water, soil health and nutrition in a suitable soil volume. Often this is a seemingly impossible task to [...]

Soil organic matter (SOM) is one of the most critical components of a healthy urban soil. While it is often a small component (<8%) of soil, it influences nearly every aspect of that soil’s ability to support tree health. [...]

Soil and foliar sampling are not exactly a new science, nor are they new ideas in the world of arboriculture. However, it is my opinion that they are still underutilized or underemphasized at the base level. As practicing arborists, [...]