Welcome to ISA Ontario

 

Ice-Covered Trees Hide Hazards Beyond the Obvious

In the months following December's rare winter storm, “homeowners and clean-up crews need to remember to be extremely careful when working around damaged and ice-covered trees,” cautions ISAO. Cautionary notes and homeowner tips...  Detailed pdfs on safety, tree assessment, pruning, future care and when to call for help are available here: Caring for ice-damaged trees & Caring for ice-damaged woodlots or plantations...

TRAQ Toronto Courses in May Full. Register for Ottawa!

LOOKING TO OBTAIN YOUR TREE RISK ASSESSMENT QUALIFICATION?. ISA’s new TRAQ program was launched last spring in Ontario and has been incredibly popular. The two courses slated for Toronto in May are full but there is still space available in the Ottawa session on June 16-18. Registration deadline is May 16th. Email for details...

Just Trees, Naturally. Our Recent 65th Annual Conference & Trade Show in Huntsville Was Another Success!

ISAO'S 65TH ANNUAL EDUCATIONAL CONFERENCE & TRADE SHOW. February 12-14, 2014, Deerhurst Resort, Huntsville. Stay tuned to the next issue of the Ontario Arborist for coverage...

Warren Buffett
Someone's sitting in the shade today because someone planted a tree a long time ago. "Warren Buffett"

Our mission is to enhance and promote the care and benefit of trees for present and future generations in Ontario through education, research and awareness.

News & Events

Apr 09
FREE Advice clinic for property owners on 22 April, 6:30pm - 9:30pm
Mar 25
This and other news can be found in the spring update from Workplace Safety & Prevention Services...
Feb 05
This document is now available on the Species at Risk (SAR) Public Registry. More info...
Jan 07
The City of Toronto is seeking resources from the private sector to assist with the removal of fallen trees and branches along city streets and parks do to the ice storm that occurred on Dec 21 & 22 of 2013...