Western Chapter International Society of Arboriculture

11/03/2026

🌺🌳Hawaii Tree Planting: Any time is a good time to plant a tree in Hawaii, thanks to its year-round growing season. The first Friday in November is Hawaii’s Arbor Day. That’s at the beginning of Hawaii’s wet season, when nature helps to water the young tree 🌦️ ✨. And on Hawaii's Arbor Day, the newly planted tree gets a lei! Photos courtesy of Maui Association of Landscape Professionals (malp.org) and Carol Kwan.

11/02/2026

🌳 Pest Fest 2026: Diagnose. Manage. Protect.

From decay fungi and foliar diseases to invasive pests, herbicide injury, and pesticide regulations—get practical insights to help keep landscape trees healthy.

📅 December 3 | 8:00 AM–2:30 PM
📍 Centre Concord | Concord, CA
🎓 5.0 ISA CEUs | DPR credits applied for
💲 $140 WCISA members | $165 non-members

Register today: wcisa.net/events

11/02/2026

Nominations for the WCISA Board are open through November 30th!- click play to hear what keeps bringing Rhonda Wood back! Spoiler Alert: It's the Trees and the People!
Visit https://wcisa.net/leadership/ to learn more and nominate!!🌲🌳🌵🌴 Come grow with us!

10/30/2026

We had a great course in Oakhurst California this week led by Geoff Kempter. Great weather, great education… The future looks bright.

10/29/2026

Today’s To Do LIst:
Sign up for ISA’s Virtual Conference ✔️✔️

The ISA 2026 Virtual Event is your chance to learn from industry leaders around the world and earn CEUs - all on your own schedule!

With on-demand access and closed captions available in more than 60 languages, there’s never been a better time to check out the ISA Virtual Event. Registration closes in a few short weeks!

Click here to learn more and register: https://ow.ly/aHjJ5101o9c

10/27/2026

Arizona’s fall colors are in full display at Mount Lemmon (photo from Adobe stock), Sabino Canyon (photo from Flickr), Boyce Thompson Arboretum (photo from Mama Travel), and Cedar Mountain (photo by John Turner for Iron Country), where golden aspens, vibrant maples, and rich oak foliage create a stunning autumn landscape. Escape to these beautiful spots for a perfect fall adventure in nature! 🍁🍂

10/26/2026

We had a blast last weekend in Davis with CAL FIRE LAMRC at their National Make a Difference Day Tree Planting & 105th Anniversary Celebration! WCISA Board Member, John Crandell, popped over the hill from Reno along with Dave Teuschler and Sarah Santee to share their love for trees!

10/26/2026

Check out the incredible line up. Here’s your chance to see and hear from an array of speakers - bookmark it.

Don't miss out on the ISA 2026 Virtual Event! Enjoy on-demand learning from 16 November through 2 December, and access educational content at a pace that works for you.

To register visit:
https://ow.ly/hhoP50ZUvfB

10/23/2026

The sun was out in a Colma today for our Arboleros workshop - Rooted in Safety: From Biology to the Job site. The perfect combination of inside - outside, English - Spanish, crew and leader…great day for learning!

10/23/2026

We beat the rain this week in a double TRAQ course with Kevin Eckert and Jim Flott at Chandler Community Center in Chandler AZ. Thanks to our partners at (Arizona Community Tree Council) for being our "boots on the ground". So proud of these 40 tree pros for taking the next step in growing their knowledge.