As pests and diseases evolve and new ones are identified, your state’s IPM department is key to staying on top of developments. The pest that caused this symptom, polyphagous shothole borer (PSHB), is primarily located in California and attacks around [...]

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 [...]

As a company delves into PHC, exploring the potential to be tree physicians rather than just tree morticians (general tree care), the array of possibilities can be overwhelming. The initial tendency is to focus on ways to control key insects [...]

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 [...]