OSHA Resources for Hurricane Clean Up

As employees in the tree care industry work to remove trees and debris in the recovery effort, they should be aware of the hidden dangers of downed power lines, wildlife, and the hazards of the equipment they are using. Veiw the online resources provided by OSHA.

Read More

The Guide for Plant Appraisal Draft Manuscript

The Council of Tree and Landscape Appraisers (CTLA) announces that the draft manuscript is available for review by member organizations. The manuscript is accessible for review purposes only and should not be reproduced or duplicated. Members of the Plant Appraisal and Valuation Committee (PAVC) are ISA's formal peer reviewers of this manuscript. Informal peer review comments are also welcomed from other ISA members. The review period began 16 January, and all comments are due by 1 March 2017. Comments should be organized in a Word document by noting which chapter(s) they refer to and sent to before the 1 March 2017 deadline.

View File


Theme picker

Image Database

ISA has a vast inventory of arboriculture- and urban forestry-related images that were compiled with the help of our members and volunteers.

Through a partnership with Forestry Images, ISA has thousands of photos and graphics available for use. ISA either owns the photos or has permission to permit their use.

Access the Image Database to browse the collection of images.

International Tree Climbing Championships

Press Releases

For inquiries about ISA news and media opportunities, contact our Communications Specialist.