Plant Hormones and Their Functions: A Quick Reference for Diagnosing Trees and Plants
What do auxins, cytokinins, gibberellins, and ethylene do in trees? A Tucson ISA Certified Arborist’s research-backed quick reference to major plant hormones.
Pruning Trees for Form and Function: Tree Biology, Proper Cuts, and Why We Don’t Top Trees
Why do arborists avoid topping? Learn tree biology, proper cuts at the branch collar, crown reduction, and what to prune, from a Tucson ISA Certified Arborist.