Showing the world the benefits of trees

We promote the professional practice of arboriculture to foster a greater awareness of the benefits of trees.

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Keep up with ISA

2020 Awards of Distinction and True Professionals

Nominations will be available soon, learn more about the awards.

2020 ISA Conference Call for Presentations

The International Society of Arboriculture will be accepting presentation submissions for the 2020 ISA Annual International Conference & Trade Show in the coming weeks. Learn more!

ISA Expands Certification Eligibility Requirements

ISA has announced expanded eligibility criteria for the ISA Certified Arborist® certification recognizing assessment-based programs to fulfill the education requirements to take the exam.

Upcoming Events

January 21-23, 2020

72nd Annual Indiana Arborist Association Conference

Indianapolis, IN United States Indianapolis Marriott East

January 21-23, 2020

Indiana Arborist Association Annual Conference

Indianapolis, IN United States Indianapolis Marriott East

January 21-23, 2020

Landscape Integrated Pest Management (IPM)

New Brunswick, New Jersey United States Extension Conference Center

January 22, 2020

Roots of the Romantic Garden

Philadelphia, PA United States Morris Arboretum

January 22 - February 5, 2020

Introduction to Botany

Philadelphia, PA United States Morris Arboretum