Random Norway Spruce defect....?

[monkeypuzzle22]

Hi all,

 

Seeing as we are accompanied by so many budding and professionally enthusiastic characters on ArbTalk i was hoping someone may know what this picture represents?

 

The pictures demonstrate a sample/branch of a Norway Spruce in a private garden, one of a cross section. A number of the branches have this defect (if it is) and became evident after removing a dense coverage of ivy....

 

Any ideas or answers would be most appreciated....

 

Thanks...

Edited November 28, 2008 by monkeypuzzle22
No pitures

[Log-ologist]

Reactive growth pattern due to external pressures on the stem.

 

any other explanations welcome.

[stihllearning]

meristematic cell disorder???

[Asplen]

Perhaps the Ivy was exerting pressure on the cambium leading to irregular growth. If it's not on the main stem anywhere nor on small branches that couldn't be "squeezed" then i'd probably guess that.

[Lee Winger]

I see no defect, I see a branch strengthened up in the right area..

[Pete Mctree]

I see no defect, I see a branch strengthened up in the right area..

 

Beat me too it. Growth patterns altered by constriction period

[monkeypuzzle22]

Hey guys...

 

Thanks for the comments, we had a suspision that it may have been some kind of reactive growth in response to the ivy, as yes there were no bulges along the main stem.

 

Have never seen it before though so thamks again...