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

Theme picker

Keep up with ISA

2020 Awards of Distinction and True Professionals

The nomination period is closedThe 2020 award winners will be annouced at the ISA Annual International Conference and Trade Show.


Theme picker

October 7-9, 2022

Indiana Tree Climbing Competition

Indianapolis, Indiana United States Garfield Park

October 7, 2022

2022 Fall Pruning Workshop

Rome, GA United States Lock & Dam/Coosa River Trading Post

October 7-9, 2022

WCISA Women's Climbing Workshop

Applegate, CA United States Jesuit Retreat Center

October 7, 2022

Advanced Arboriculture and Tree Science

, United States Webinar