Retrenching Liriodendron

[Pelorus]

Thanks, Treeseer. I wasn't sure if Shigo's observation was more of a generalized academic consideration, or if one needs to tread very softly re. pruning of oak limbs for any reason other than to remove dead/diseased/dying or structurally compromised wood.
Endo vs epi typo my bad.

 

[treeseer]

" I wasn't sure if Shigo's observation was more of a generalized academic consideration, or if one needs to tread very softly re. pruning of oak limbs for any reason other than to remove dead/diseased/dying or structurally compromised wood."

Both may be true.

belated pics of tornout top (by storm not saw?) after pic of the big canker which is halfway up. this framework has been called "fect"; not per-.

 

[Pelorus]

The last photo may indicate that where there is life, there is hope..., but I think The Undertaker has a rendezvous scheduled with Mr. Liriodendron.

 

[Pelorus]

if the growth is from dormant buds it will 1 not require the use of stored energy to make new buds, and 2 not be epi-cormic (outside the core). It will be endo-cormic, attached to the core by pith trails and already hooked up to vascular streams.

Treeseer, I don't want to replow the same cornfield, but I'm still a bit confused over the latent/dormant bud thing. Please help this grasshopper to understand.

Came across this excerpt in "Pruning Oak Trees in Southern California"
(Adapted from a presentation given at the Oaks in Urban landscapes II meeting, October, 28, 2004 at the Los Angeles Arboretum) which seems to run contrary to what you have said. Or maybe not?

"If pruning has been severe (say more than 50% canopy removal), it is possible to invigorate latent buds that will result in the development of epicormic, randomly spaced branches."

 

[treeseer]

"If pruning has been severe (say more than 50% canopy removal), it is possible to invigorate latent buds that will result in the development of epicormic, randomly spaced branches."

The full context would help; not making sense on its own.
First, even a NON-severe pruning, like 10%, can spur development of new, inner branches.
ime they're spaced according to the dictates of hormones and sunlight and other natural and predictable forces. not random, unless it's "panic" sprouting from a major whacking.
If they're from buds newly formed in the cambium they are epicormic; if from latent/dormant/suppressed buds, the branches are connected to the core, literally endocormic.

the confusion comes from the terminology: adventitious growth can arise from either adventitous or dormant buds. Lumping all sprouts together as "epicormics" can lead to the idea that "all sprouts are bad and get cut", which is somewhere down there with "all stubs are bad and get cut" in terms of overgeneralizations.

Lots of variables here but by looking closely at the tree one tends to sort it out. hope this makes some sense; this grasshopper is hopping to work!

 

[millbilly]

"I think that urban trees must be the most misunderstood and physically mutilated living things on the face of this earth. Why do humans butcher trees the way they do? Why do humans feel that they must severely prune and cut back and reduce the size of subdue and exercise absolute dominance and control over trees? Why do humans waste so much money and effort on unnecessary pruning?"

Deborah Ellis, MS.
Consulting Arborist & Horticulturist

ASHS Certified Professional Horticulturist #30022, ASCA Registered Consulting Arborist #305,

I.S.A. Board Certified Master Arborist WE-0457

Im a non certified nothing but I do know butchering is somethin you do to animals not trees.