Daniel “Danny” Rose, an ISA Certified Arborist with CoolWood Urban Forestry, applies a basil drench. Photos courtesy of Eleven Mass Media. Plant health care (PHC) is a comprehensive program aimed at managing the health, structure and appearance of plants within [...]

Congratulations! You are about to enter what I consider the most fascinating sphere of arboriculture. Plant health care (PHC) involves research, investigation, diagnostics and treatments. Providing PHC services allows you to better serve your clients and their trees, developing long-term [...]

In this article, we are going to talk about fungal anatomy as well as how and where fungi (fun’ ji) attack trees, and how that in turn affects the trees and us. When we’re looking at a tree that’s infected [...]

Photo 1: Shumard oak with oak-wilt disease. Photo courtesy of the Bartlett Tree Research Media Library. The importance of mycorrhizae and the role they play in enhancing tree health is widely recognized by arborists. However, the role of endophytes, i.e., [...]

The opposing attorney walked toward me jauntily. “So, have you heard the one about how many opinions one would receive when employing 10 arborists to appraise a tree?” Above: Removal of the tree left the property exposed. Inset: Hardscape upheaval. [...]