Showing the world the benefits of trees

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

Read More

Keep up with ISA

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 21 December 2018 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.

See You In Knoxville!

We're looking ahead to the 2019 ISA International Conference & Trade Show and ITCC in Knoxville, TN!

Upcoming Events

October 23-25, 2018

Roots and Trees: Different shapes and functions. Biology and biomecanics

Terrassa, Barcelona Spain Parc de Sant Jordi. Masía Freixa

October 23, 2018

Pruning Deciduous Trees

Philadelphia, PA United States Morris Arboretum

October 24-26, 2018

L1 ArborMaster Tree Climbing Methods, Work Positioning & Best Practice

Attleboro, MA United States

October 25, 2018

EHAP Workshop

Denver, CO United States Balistreri Event Center

October 26-28, 2018

Latin American Tree Climbing Championship

Medellín, Antioquia Colombia Parque La Floresta