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., [...]

Note: This is a botanical article. Our purpose is not to judge the relative value of the Lahaina Banyan Tree compared to other damages and losses in Lahaina. Our purpose is to report on the efforts to save trees after [...]