Is structural pruning really plant health care? Given that it can save trees from being prematurely removed from the landscape, it clearly is PHC, and may be one of the more important PHC practices. In some cases, a single pruning [...]

These ash at the Holocaust Memorial Boston were treated with a fertilizer containing nutrients, humic acid, surfactants and humectants designed to increase root development and reduce water stress. Photo courtesy of Arborjet. As most arborists know, one of the fundamental [...]

Diagnosing the cause of plant problems is one of the foundational components of all plant-health-care programs. Without knowing the fundamental cause of a plant’s problem, it is highly unlikely that a successful remediation strategy can be designed and implemented. Environmental [...]

Scouting is the essential first step of an IPM program. Shown here is Tammy Kovar, owner of Biological Tree Services, a nine-year TCIA member company based in Sarasota, Florida. All photos and graphics courtesy of the author. Plant health care [...]

An Almstead crew performs soil injection at Liberty State Park, near the 911 Memorial, in Jersey City, New Jersey. Photo courtesy of Arborjet. For the fourth installment of this series, we asked a number of industry professionals what we thought [...]