Gano on Plane in US

[treeseer]

This colonisation has been part of the collection at the Brooklyn Bot Gdn for a long time. The progression has been very gradual, as has the tree's response.

[Tony Croft aka hamadryad]

nice find Guy, thanks for sharing

[treeseer]

BBG has a fine collection of vets. This one's pushing 100', and < that distance is the building. The conks are a feature of admiration; no fell-happy assessor has gained influence thank goodness. In anticipation of more such concern, it may be due a tickle.

[David Humphries]

What would you constitute as a 'tickle' in terms of reduction spec on a 100' plane?

 

Do you think management of trees with decay issues like this one is directly influenced by tragedies such as the fatality of the pregnant women in Kissena park in Queens last August, which I guess is relatively local and still fresh in the conscience of the public and tree managers alike ?

 

 

 

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[treeseer]

"What would you constitute as a 'tickle' in terms of reduction spec on a 100' plane?""

 

This would be on a leader-by-leader basis, but I'd say <10%--5%?-- based on the apparent good attachments of the ~8 major leaders coming off the ~5m stem. The purpose includes being able to tell any defect-centric observer that yes, steps have been taken to manage load.

 

"Do you think management of trees with decay issues like this one is directly influenced by tragedies such as the fatality of the pregnant women in Kissena park in Queens last August, which I guess is relatively local and still fresh in the conscience of the public and tree managers alike ?"

 

As little as possible. The arb in charge is well aware of the many recent tragedies in NYC, but is able to react to tree risk in a specified and tree-value-centric way. Despite the media and the victims' solicitors roiling up public sentiment, conscience stirs vigilance, not arborphobia, in this garden.

 

 

 

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[treeseer]

The first pic shows vascular discontinuity on the buttress ~1m from the ground. Deep soil improvement for that root would be a big part of the plan.

[Tony Croft aka hamadryad]

The first pic shows vascular discontinuity on the buttress ~1m from the ground. Deep soil improvement for that root would be a big part of the plan.

 

why? has poor conditions been discovered? vitality in remaining buttresses seems self evident?

[treeseer]

why? has poor conditions been discovered? vitality in remaining buttresses seems self evident?

Yes, vascular discontinuity is a poor condition. O, if you mean rooting conditions, yes the slope it is on has been artificially eroded (leaves raked) for a long time.

 

As visible, that buttress is colonised on both sides.

 

It is the tension root on the side away from the building.

 

So if the gano's pincer movement renders this root dysfunctional, that would increase the risk of failure onto the building. Comprendez vous, mon frer?

[Tony Croft aka hamadryad]

Yes, vascular discontinuity is a poor condition. O, if you mean rooting conditions, yes the slope it is on has been artificially eroded (leaves raked) for a long time.

 

As visible, that buttress is colonised on both sides.

 

It is the tension root on the side away from the building.

 

So if the gano's pincer movement renders this root dysfunctional, that would increase the risk of failure onto the building. Comprendez vous, mon frer?

 

soil errosion alone does not signify poor rooting environment.

 

Discontinuos trunks or fluting also does not always suggest poor rooting conditions.

 

I am taking it as a given, pure assumption (but forcing/hinting for elaboration for the benefit of others) assuming then that compaction levels, nutrient levels and hydration potential both lacking and excessive has been evaluated in order to confirm statement of "poor rooting environment"

 

otherwise it could be just a case of ripe-wood being aerated and being colonised by a somewhat invasive and capable delignifier (G. resinaceum for example)

 

Yes, I do comprehend!

[treeseer]

Soil erosion alone does not signify poor rooting environment, but it's a strong indicator of that probability.

 

Discontinuous trunks or fluting also does not always suggest poor rooting conditions, but seeing that trend develop is an action item, on the tension side, with the building under it.

 

Compaction levels, nutrient levels and hydration potential would be checked by sampling with probes etc. before specs written. "poor rooting environment" is an assumption to start with; this all based on a 1-minute check during a 52-acre tour.

 

Another factor is the ripe-wood being aerated and being colonised by a possibly invasive and capable delignifier (G. resinaceum for example). But it's not either-or! Root function boosts the tree's ability to defend against the pest, so soil works are not ignored while the fungus is assessed and admired.