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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Order Delays Due to Physical Inventory

Due to ISA’s annual physical inventory, orders placed between 2 p.m. EDT, Thursday, 20 June 2019, and 11:59 p.m. EDT, Friday, 28 June 2019, will not ship until the week of 1 July 2019.

Please plan your ordering accordingly. We will resume regular turnaround times 1 July 2019.

Thank you for your patience.

Questions? Please call the customer service team at (678) 367-0981.

Keep up with ISA

ISA Accepting Nominations for 2019 Awards of Distinction and True Professionals

Nominate the best professionals in the arboriculture industry by 4 March 2019. Submit your nomination!

2019 ISA Conference Call for Presentations

The International Society of Arboriculture is now accepting presentation submissions for the 2019 ISA Annual International Conference & Trade Show. Submit your presentation before the 1 March 2019 deadline.

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

June 28-30, 2019

Taiwan International Tree Climbing Championship

Taipei, Taiwan Taiwan Taipei Park

June 28, 2019

Assessment of Tree Junctions/ Dr. Duncan Slater

Madrid, Madrid Spain Jardín Botánico de Madrid

July 9, 2019

IPM for Woody PlantsHands-On Integrated Pest Management (IPM) Workshop

Toronto, Ontario Canada Mt. Pleasant Cemetery

July 11-12, 2019

IASHK Space Summer CEU Programmes - Programme 2: Board Certified Master Arborist (BCMA) Exam Preparation

Hong Kong, Hong Kong IASHK Space in Fotan Hong Kong