Dual Decay

[Gary Prentice]

Going back a step, would two 'infections' by the same species coexist? Or set up barriers to safeguard their environment from each other?

[daltontrees]

Going back a step, would two 'infections' by the same species coexist? Or set up barriers to safeguard their environment from each other?

 

That was my standby question...

[sloth]

I think it would be species dependent. However I believe I read somewhere individuals of the same species do set up their own individual boundaries - until they are close enough they wouldn't necessarily be aware of each others existence. Of course at some point to colonies of the same species meeting would share genetics to produce offspring, would they not? And then perhaps they would be open to sharing resources too...

[David Humphries]

?..........what would be interesting would be whether australe and resinaceum are so genetically similar that can have some form of co-existence in the same host.

 

 

 

 

Hi Jules, we've generally found one (G. resinaceum) to be more aggressive than the other when both in the same host, but like Kevin has stated it probably is dependent to some extent on tree species.

 

 

Did you see the below post on the decay image thread (post 333) from earlier this year, I think Gary did.

 

http://arbtalk.co.uk/forum/tree-health-care/19533-decay-images-34.html

 

 

Red oak that has 2 separate Ganoderma species colonisations.

 

G. resinaceum first noted about 2007

 

[ATTACH]222188[/ATTACH]

[ATTACH]222189[/ATTACH]

 

G. australe first noted 2016

 

[ATTACH]222190[/ATTACH]

[ATTACH]222191[/ATTACH]

[ATTACH]222192[/ATTACH]

 

We've been monitoring the decay progression since 2007, first using an Arborsonic decay detector then more recently by utilising sounding hammer and the IML Resistograph.

 

[ATTACH]222193[/ATTACH]

 

The most recent resistographs have shown that the sound residual wall is down to about 6cm

 

[ATTACH]222194[/ATTACH]

 

The tree had a significant lean over a well used footpath so was reduced/topped in 2010.

 

[ATTACH]222195[/ATTACH]

 

The tree was retained rather than removed as it is a good habitat tree with cavities in the trunk and main scaffold branches.

 

Seven years on and the decision was made to remove the tree today as the residual wall is too thin to retain.

 

[ATTACH]222196[/ATTACH]

[ATTACH]222197[/ATTACH]

 

The resinaceum decay (which was actual sponge) has been highlighted in red, the remaining white rot is from the australe.

 

[ATTACH]222198[/ATTACH]

 

The decay extended at least 3m up the trunk and below ground level

 

[ATTACH]222199[/ATTACH]

[ATTACH]222200[/ATTACH]

[ATTACH]222201[/ATTACH]

[ATTACH]222202[/ATTACH]

[ATTACH]222203[/ATTACH]

[ATTACH]222204[/ATTACH]

[ATTACH]222205[/ATTACH]

 

The last resistograph was taken from 2.5m up the trunk.

 

.

[Marula]

David Humphries, you post some really interesting stuff[emoji1360], always a pleasure to read.

 

 

Sent from my iPad using Arbtalk

[David Humphries]

David Humphries, you post some really interesting stuff[emoji1360], always a pleasure to read.

 

 

Good to hear that some people find it interesting and potentially of some use.

 

Sharing and stimulating debate is what's best about Arbtalk.

 

 

 

.

[Gary Prentice]

Good to hear that some people find it interesting and potentially of some use.

 

Sharing and stimulating debate about arboriculture is what's best about Arbtalk.

 

 

 

.

 

Think you omitted a couple of words in your last post:001_rolleyes:

 

Fixed it for you:wink:

[David Humphries]

Think you omitted a couple of words in your last post:001_rolleyes:

 

Fixed it for you:wink:

 

 

 

For sure, appreciate that Gary

 

 

 

 

.

[Marula]

Good to hear that some people find it interesting and potentially of some use.

 

 

 

Sharing and stimulating debate is what's best about Arbtalk.

 

 

 

 

 

 

 

.

 

 

It's great for those of us that like "nerding out" about mycology, much appreciated[emoji1360].

 

 

Sent from my iPad using Arbtalk

[David Humphries]

Brown heart rot - Fistulina hepatica, and the root sapwood decayer - Collybia fuisipes

 

 

 

Canopy in decline, but previously reduced so just monitoring

 

 

.