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.

2021 Shade Tree Symposium

The Symposium Committee for the Penn-Del Chapter of the ISA is currently deciding on what the best approach would be for the upcoming conference scheduled for February 2021. Please help us make this decision with your feedback. A survey has been sent out to all members, if you have not received it, please follow this link to participate. 2021 Symposium Survey

COVID-19 Pandemic

Please read our statement regarding the impact this pandemic is having on our industry.  Click HERE


Become a Member

Penn Del ISA membership provides you with access to exclusive resources and discounts. An investment in a chapter membership pays itself back through discounts on continuing education, access to exclusive resources and content, and educational benefits that will advance your career.

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2020 Board Meetings

March 13th - Conference Call
May 8th - Conference Call
August 21st - Conference Call
October 16th - Conference Call
December 11th - Meeting in person: State College, PA