Arboricultural Association

Review Invitation: New Technical Guides. Deadline Monday 16th February

GTG1: Plant, Machinery and Equipment An inventory of common items used in arboriculture, including: (1) chainsaws; (2) hedge cutters; (3) brush cutters; (4) pruning tools; (5) ladders; (6) vehicles and trailers; (7) firewood processors and log splitters; (8) woodchippers; (9) stump grinders; (10) compact loaders; (11) excavators; (12) tractors; (13) mulchers and flails; and (14) pneumatic soil excavation systems, with core guidance and a dedicated section on common factors, such as modifications. GTG2: Supporting Aerial Tree Work The role of someone working on the ground during an aerial operation, including running rigging systems, providing visual guidance for pruning work and de-slinging sections lifted by a crane.

GTG3: Tree Felling and Processing Tree felling and processing operations, including considerations, techniques and methods particularly applicable to arboriculture, such as weight and force calculations, assisted felling systems, and approaches to common situations (e.g. part-dismantled trees and standing stems). ATG6: Use of Mechanised Equipment in Tree Work The use of tree shears, grapple saws and other related equipment, attached to common carrier vehicles/base machines, for cutting and handling sections of tree. In addition, the following guide will also be made available for peer review, due to the extent of recent revisions: ATG4: Use of Mobile Cranes in Tree Work We are now inviting interested parties to peer review one or more of these draft documents and provide comments for consideration prior to publication later in the year.

Please express your interest by Monday 16th February. Those who respond will be contacted with details of the next steps. Reviewers will be provided draft documents and must submit comments within one month.

The Association has developed four new Technical Guides alongside the revision of its existing publications.

We are now inviting interested parties to peer review these draft documents prior to publication later in the year.

Please express your interest by 16th February
➡️ trees.org.uk/TG-Review

Missed our latest webinar on Fungi in the USA?

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Reforesting Devon with Harry Studholme
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Subsidence Investigation Workshop
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Building on the one-day Getting to Grips with Subsidence course, this
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Fungi in the USA with Michelle A. Jusino and Elena Karlsen-Ayala

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Fungi in the USA with Michelle A. Jusino and Elena Karlsen-Ayala

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Reforesting Devon with Harry Studholme
📆 Wednesday 21st January @ 6pm
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Beyond cultivation: tracking the spread and ecological effects of the golden oyster mushroom with Michelle A. Jusino

📆 Wednesday 7th January @ 6pm
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Veteran trees - navigating too many definitions with James Chambers
📆 Wednesday 14th January @ 6pm
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Learn all about tree care with this essential guide! 🌳

Designed for anyone who has a tree in their garden or is considering planting one – it is for tree enthusiasts and those who want to learn more about these incredible organisms.

👉 Pre-Order The Tree Care Manual: trees.org.uk/shop

Merry Christmas & Happy Holidays from all of us at the Arboricultural Association

Thank you for all your support in 2025💚
Our office will be closed from midday Wednesday 24th December and we will return Friday 2nd January.

A Year Among Trees with a Special Feature: Green Legacy Hiroshima with Chris Knapman and Nassrine Azimi, Mariko Kikuch and Sophie Qano

Watch now on Youtube
➡️ buff.ly/k9mgixd

Subsidence Investigation Workshop
📍Online via Zoom
📆Starting 19th January 2026

Building on the one-day Getting to Grips with Subsidence course, this
workshop tackles some of the more technical areas.

View the full course details: buff.ly/t165rge

FREE LIVE WEBINAR  

Beyond cultivation: tracking the spread and ecological effects of the golden oyster mushroom with Michelle A. Jusino

📆 Wednesday 7th January @ 6pm
📝 1.5 hours CPD/CEU
🔗 buff.ly/l43giLU

Want to increase your Arboricultural knowledge?

This course is for you!

➡️ Arboricultural Knowledge
📆 Starting 12th January 2026
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Book here: buff.ly/kFTsWrV

⏰Our Wednesday Webinar starts in 1 hour! ⏰

A Year Among Trees with a Special Feature: Green Legacy Hiroshima
With Chris Knapman and Nassrine Azimi, Mariko Kikuch and Sophie Qano

🕕 6pm GMT
📝 1.5 hours CPD/CEU
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Books for Christmas- Order by tonight!

Please order your books for Christmas by Tuesday 16th December 2025 (UK orders) as the last recommended Royal Mail posting date for Christmas is Wednesday 17th December 2025

Shop here: trees.org.uk/shop

Free Live Webinar Tomorrow!

A Year Among Trees with a Special Feature: Green Legacy Hiroshima
With Chris Knapman and Nassrine Azimi, Mariko Kikuch and Sophie Qano

📆 Wednesday 17 December 2025 @ 6PM GMT
📝 1.5 hours CPD/CEU
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Rewatch our webinar on Lost Elms & The Trees and Shrubs Online Resource
with Mandy Haggith and John Grimshaw on YouTube👇

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⏰Our Wednesday Webinar starts in 1 hour! ⏰

Lost Elms & The Trees and Shrubs Online Resource with Mandy Haggith and John Grimshaw

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Lost Elms & The Trees and Shrubs Online Resource

📆 Wednesday 10 December 2025 @ 6pm GMT
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Books for Christmas🎄

Please order your books for Christmas by Tuesday 16th December 2025 (UK orders) as the last recommended Royal Mail posting date for Christmas is Wednesday 17th December 2025

Shop here: trees.org.uk/shop

⏰Our Wednesday Webinar starts in 1 hour! ⏰

Planting ideas in the urban forest with Mark Johnston

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Free Live Webinar Tomorrow!

Planting ideas in the urban forest with Mark Johnston

📆 Wednesday 3rd December @ 6pm GMT
📝 1.5 hours CPD/CEU
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Rewatch our webinar on Carbon Capture & Giant Sequoias in the UK with Mat Disney and Phil Wilkes on YouTube👇

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FREE LIVE WEBINAR

Lost Elms & The Trees and Shrubs Online Resource

📆 Wednesday 10 December 2025 @ 6pm GMT
📝 1.5 hours CPD/CEU
🔗 buff.ly/WA7pP8N

Green Friday sale now live!💚🌳

Shop exclusive deals with us until 1st December👇

📚 The Arb Association Book Shop has discounts on some of the best Arb, Tree and Fungi books

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From now until 2nd December, use code TAKE10 at checkout to get 10% OFF your entire order!

🌟Order on Black Friday (Friday 28th November) and you'll also receive FREE SHIPPING on top of your 10% discount!

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⏰Our Wednesday Webinar starts in 1 hour! ⏰

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Carbon Capture at Wakehurst & A New Look at the Giant Sequoia in the UK with Mat Disney and Phil Wilkes

🕕 6pm GMT
📝 1.5 hours CPD/CEU

Our Tree Establishment Webinar with Lara Roman and Daisy Brasington is now available to watch on YouTube👇

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