Until this summer, my only known allergy was to the Australian silk oak, Grevillea robusta, which I wrote about in the July 2020 issue of TCI Magazine (Safety Forum: “Beware the Australian Silk Oak.” Quite recently I suffered another, albeit [...]

In the February 2023 issue of TCI Magazine, we reviewed some important mechanical concepts that arborists should know to better understand the likelihood of tree failure (“What Is Tree Biomechanics, and Why Should I Care?”). From that article, we learned [...]

Rejuvenation pruning is the aggressive cutting of stalks, or stems, of certain shrubs to the ground in late winter. There is a limited group of plants that consistently respond well to this type of pruning. I only have experience with [...]

More than 55% of the world population now lives in cities, according to an October 2022 report by the World Bank. This percentage is expected to increase to nearly 70% by the year 2050. As once-natural areas become developed and [...]