Mark Chisholm, CTSP. Owner and climber, Aspen Tree Expert Company. Jackson, NJ. Climbing: 30+ years. MARK CHISHOLM, CTSP Favorite item in my gear bag: My Double-Bungee Rope Walking System. It’s the easiest system to enable me to ascend [...]

Reduction of excess soil and mulch around a young tree trunk. All photos courtesy of the authors. The information in our first article (published in the March 2026 issue of TCI Magazine) hopefully established biochar as a scientifically [...]

Illustration courtesy of Natalya Kosarevich/iStock Private equity is becoming more visible in tree care. Some business owners are being approached about selling their companies, while others are seeing nearby businesses merge, change ownership or become part of larger [...]

The rescue of John Dear. Photo courtesy of Alanna Patterson. When a cat named John Dear spent days stranded in a bur oak in rural Iowa, tens of thousands of people on Threads, the social-media platform, began bracing [...]

Competitors from Miller’s Tree Service prepare for a day of climbing events. All photos courtesy of Miller’s Tree Service. I've been climbing trees for 23 years now. In that time, I’ve seen our industry evolve in some incredible [...]