Timothy M. Walsh, CTSP. Like most of us, I didn’t enter arboriculture chasing credentials. I entered because I loved the work: the pace, the responsibility, the crews and the satisfaction of doing difficult work well. But over time, [...]

Cover of “The CODIT Principle: Tree Biology and Arboriculture, Second Edition." Photo courtesy of the International Society of Arboriculture (ISA). In the August 2017 issue of TCI Magazine, I reviewed Dirk Dujesiefken and Walter Liese’s “The CODIT Principle: [...]

In tree care, safety is often treated like overhead. Necessary. Required. Important, sure – but expensive. Harnesses, helmets, training days, downtime for tailboards, safety managers, documentation. When you’re running multiple crews and watching fuel, labor and equipment costs climb, it [...]

Jonathan Guest, founder and CEO of Safety Shield Global. All photos courtesy of HSE Americas. After the death of a close friend in a workplace accident, Jonathan Guest began a 15-year effort to prevent similar tragedies. That mission [...]

For more than a decade, the Petzl Sequoia has been a stalwart in the climbing world. Lightweight, mobile and streamlined, it has long been a go-to harness for arborists who value efficiency and freedom of movement in the canopy. Petzl [...]