Welcome
The Pennsylvania-Delaware Chapter of the International Society of Arboriculture was founded in 1960. The purpose of this organization is to foster a greater appreciation for shade trees and to promote the science, technology, and practice of professional arboriculture in the states of Pennsylvania and Delaware.
There are currently over eight hundred members in the chapter including commercial, consulting, municipal, and utility arborists, researchers and educators, horticulturists, and individuals interested in the care of trees and landscapes.
What’s New
-
PennDel is seeking an Executive Director to join our team!
-
The North American TCC is now official!
-
Register for Managing Threats to the Urban Forest, Pittsburgh, Riverview Park, September 17
-
Register for the SE Tree Climbing School to be held October 4 – 8
-
Western Tree Climbing Championship (TCC) Results & Photos - WTCC Page & WTCC Pics
-
Eastern Tree Climbing Championship (TCC) Results & Photos - ETCC Page & ETCC Pics
A Quarterly Publication of the Pennsylvania-Delaware Chapter of the ISA
Click here for past newsletters


