Photo courtesy of halbergman/iStock. Urban environments present a multitude of environmental stressors that negatively impact tree biology. These stressors include soil deoxygenation due to waterlogging from poor or impeded drainage, soil compaction from human activities, increased frequency of [...]

The benefits of a woodchip mulch layer over the root system of a tree are now widely recognized. These include conservation of soil moisture to reduce the detrimental effects of drought and weed suppression, and, as the mulch layer is [...]

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., [...]