Veteran Tree Management,

Glad to see Philip's ppt is freeware, great stuff!

Thanks for that thread, 6 years old but not outdated imo. Sure would be great to see a 2013 image of those trees!

The manual's focus on other organisms leaves a lot to say about pruning to retrench, and no one from the UK including the Morphogene has detailed it clearly yet. Much easier said than done.

Fools rush in--Friday Nov 15 8 a.m. (groan) at Expo there'll be an effort to plug that gap a bit. An 8-page handout will synopsize the best available info (Expo encourages paper handouts, while many chapter conferences have gone digital).

Google Coder Arboritecture, and Goodfellow John 2009, for a fresh look at pruning. (Why don't pdfs attach here?)

Retrenchment first referred to soldiers who retreated back to a line they could defend, where landforms and supplies allowed them to dig in and fight anew. This concept relates very well to declining trees, so before cutting any branches to reduce the size of the canopy, visualize the new canopy outline.
The objective is to make reduction cuts so that branch tips are left intact on the new, smaller canopy. For trees with strength loss at the base, as little a 15% reduction can increase strength by 50%
 

Attachments

For trees with strength loss at the base, as little a 15% reduction can increase strength by 50%

Is that 15% volume/brush pile size or diameter crown reduction?

Increase strength or reduce load?

I've heard both of these terms used different ways which leads to confoosion
confused.gif
 
Tom, I would error on the side of reduced load.

Without stealing the thread as I feel this relates to the subject, I am attaching three photos of a project of mine. The crew and I reduced the load using reduction and removal cuts.

The goal is to take a tree that was lions-tailed twice and is extremely off balance and tip heavy after removing the forest around it. It was full of Mistletoe in the outer canopy. This is odd in a Live Oak (Quercus virginiana)as it seems to happen under extreme stress.

The mistletoe seemed to be at natural shedding points of a restructured canopy but this is a story for another thread.

My goal is to use the natural lines in the canopy to retrench and regrow the canopy over the road. This tree has been struck by lightning twice since construction.
 

Attachments

  • 371416-Feb2013Before.webp
    371416-Feb2013Before.webp
    240.9 KB · Views: 91
Approximatly 20,000 lbs of material was removed from the canopy.
 

Attachments

  • 371417-Feb2013After.webp
    371417-Feb2013After.webp
    169.8 KB · Views: 88
Cambistat was added. Feb 2013

Arborjet - Phosphojet was injected Mar 2013

This is 5 months after pruning. Picture taken June 2013.
 

Attachments

  • 371418-25June2013024.webp
    371418-25June2013024.webp
    118.5 KB · Views: 91
"Without stealing the thread as I feel this relates to the subject, I am attaching three photos of a project of mine. The crew and I reduced the load using reduction and removal cuts.

Man, you bumped it up! Nice looking work. The after pic looked scary, but it sure did respond!
grin.gif


"The mistletoe seemed to be at natural shedding points of a restructured canopy but this is a story for another thread.

Pics! That would make an interesting thread.

"My goal is to use the natural lines in the canopy to retrench and regrow the canopy over the road.

you calll em natural lines, Morphogene calls em growth phase changes, tomayto tomahto

"This tree has been struck by lightning twice since construction.

Time for an LPS eh? 3rd might not b a charmer.
crazy.gif
 
[ QUOTE ]
Sean...welcome back to the thread :) and, for me, I get to see your Shorthair which brings back memories of Duchess and Fritz, the two I grew up with!

[/ QUOTE ]

He is sooo handsome and (along with my partner Mels) is the light of my life.

NZ is certainly a new beginning delivering presentations on the 'value' of trees in the urban forest...in some ways good to revisit these things too easy to assume that the general public (and other professionals really understand all the services trees provide.
 

New threads New posts

Back
Top Bottom