ISA Ontario

ISA Ontario The mission of the ISAO is to enhance and promote the care and benefit of trees for present & future generations through education, research & awareness.

The ISAO is a membership association of dedicated tree care professionals or professional arborists. We promote research, technology and education to advance best tree care practices and provide opportunities for our members to develop their knowledge, skills and arboricultural expertise. By hiring an ISAO certified arborist, you can be assured you are hiring a professional arborist who values saf

ety, education, quality, good work/management practices - all things that are the foundation of the ISA and over 30,000 members in 29 countries, worldwide.

PROTECT YOURSELF! ⛔ TICK SEASON IS HERE!ISA Ontario's Safety Committee has a variety of topics covered in '3D Safety Tal...
06/04/2026

PROTECT YOURSELF! ⛔ TICK SEASON IS HERE!

ISA Ontario's Safety Committee has a variety of topics covered in '3D Safety Talks', including TICKS. Check out ALL the Safety Resources available on our website. Click on the 3D Safety Talks link. (link in bio)

Be safe this summer!

https://www.isaontario.com/safetyresources/

UPDATE YOUR ISA CREDENTIALS AND BE SEEN!ISA is transitioning to a new portal that allows credential holders to manage th...
06/02/2026

UPDATE YOUR ISA CREDENTIALS AND BE SEEN!

ISA is transitioning to a new portal that allows credential holders to manage their own professional information and provides the public with the most accurate and current credential verification.

Even if you don't want to be found by location, it is important that your credentials can be verified by a potential customer!

The current ISA’s legacy 'Find an Arborist' system will be retired by 30 June 2026.

ISA Ontario has been corresponding with ISA International to work through some issues and hope they will be resolved soon.

Don't miss out! Visit the link in our bio or click: https://www.isaontario.com/isa-profile-update-aug2025/

Spotted lanternfly egg masses are laid in late summer. These egg masses can survive winter temperatures and hatch in the...
05/29/2026

Spotted lanternfly egg masses are laid in late summer. These egg masses can survive winter temperatures and hatch in the spring.

If you think you have seen the spotted lanternfly or its egg masses:
👉 Take a photo or video
👉 Catch the insect or scrape the egg masses, and put it into a sealable container
👉 Report it to the Canadian Food Inspection Agency (CFIA) immediately

VISIT THE LINK FOR INFO AND REPORTING:

https://inspection.canada.ca/en/plant-health/invasive-pests-and-plants/insects/spotted-lanternflynada.ca

Photo credits: CFIA + Erica Smyers

ISAO and Ontario Arborist magazine is in need of volunteer editors.Do you have a passion for arboriculture, urban forest...
05/27/2026

ISAO and Ontario Arborist magazine is in need of volunteer editors.

Do you have a passion for arboriculture, urban forestry, and sharing industry knowledge? We need someone to help review, edit, and shape our feature articles so they resonate with our community of arborists and green-industry professionals.

Ontario Arborist magazine is published 6 times a year and is one of the many perks of ISAO membership!

Interested in learning more about it - contact us at [email protected] and introduce yourself.

Harsh winds and heavy storms can take a toll on your trees!Attempting to DIY downed trees or clear hanging limbs is a ma...
05/25/2026

Harsh winds and heavy storms can take a toll on your trees!
Attempting to DIY downed trees or clear hanging limbs is a major safety risk! Hire an ISA Certified Arborist!

⚠️ Warning signs to watch for:

• Split trunks and major cracks
• Broken or hanging branches caught in the canopy
• Trees suddenly leaning toward your home or power lines
• Exposed root systems

For resources when hiring an ISA certified arborist visit (link in bio): https://www.isaontario.com/hire-a-certified-arborist/

WHY BECOME ISA CERTIFIED? Earning an ISA credential is a voluntary activity, but it demonstrates that you have the prope...
05/21/2026

WHY BECOME ISA CERTIFIED? Earning an ISA credential is a voluntary activity, but it demonstrates that you have the proper knowledge and skills, as well as a high level of dedication to your profession and your community.

An ISA Credential can help you advance your career, give you a competitive edge, can lead to increased income, and can open the door to new opportunities for professional advancement.

FOR INFORMATION ABOUT ISA CREDENTIALS VISIT THE LINK (in our bio): https://www.isaontario.com/become-isa-certified/

🌳 Spring is the best time to prune many trees and shrubs.Pruning helps promote healthy growth, improves airflow, and can...
05/19/2026

🌳 Spring is the best time to prune many trees and shrubs.

Pruning helps promote healthy growth, improves airflow, and can even encourage more blooms and fruit later on.

Knowing what and when to prune makes all the difference.
Hire an ISA certified arborist!

TIP: Oak trees should not be pruned between April and November - HELP PREVENT Oak Wilt!!

Another incredible poster (pull-out) from Oliver Reichl will appear in the next Ontario Arborist magazine with ONTARIO T...
05/15/2026

Another incredible poster (pull-out) from Oliver Reichl will appear in the next Ontario Arborist magazine with ONTARIO TREES + SILKWORM MOTHS. This poster is at 1:1 scale and it includes the caterpillars.

How many posters do you have?

ISA Ontario members receive the bi-monthly print magazine. One of the many perks of membership. Find it in your June/July 2026 issue of the magazine.

Learn more about all the perks of membership here: https://www.isaontario.com/become-a-member/
🔗 in bio.

Tracy has joined the ISAO team and brings valuable experience. She has taken over to complete the one-year part-time adm...
05/11/2026

Tracy has joined the ISAO team and brings valuable experience. She has taken over to complete the one-year part-time administration coordinator contract as Ciara begins her maternity leave.

Welcome Tracy!
Conratulations to Ciara and her family!

.wilson7

Happy Mother's Day! 💐Motherhood comes in all shapes, sizes and forms. However today looks for you, we're sending love to...
05/10/2026

Happy Mother's Day! 💐

Motherhood comes in all shapes, sizes and forms. However today looks for you, we're sending love to all the mums and mother figures out there.

Address

7856 5th Line, South
Milton, ON
L9T2X8

Opening Hours

Monday 9am - 4pm
Tuesday 9am - 4pm
Wednesday 9am - 4pm
Thursday 9am - 4pm
Friday 9am - 4pm

Telephone

+18884632316

Website

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