Roadside tree analysis| BCC

Ekka

Was driving around and noticed a honking fruiting body sticking out of this ironbark, so pulled over and had a better look.

Tree is on the corner of Bapaume road and Gaza road Holland Park West.



Canopy has plenty of die back with remainder being perhaps 50% density.



Fruiting bodies around the tree



Largest facing road side





Smaller ones near base facing footpath



Anyone confident to ID the fruiting bodies? Looks like Phellinus robusta to me.

Attached Thumbnails

           

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Galbee

That was my first thought too, that tree needs tomography urgently then maybe a 446 treatment.

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Sean Freeman

Sure looks a lot like Phellinus robustus, but without absolute certainty all you can say is it is Phellinus sp.

It really doesn't make all that much difference in terms of the pathology (it certainly seems to be acting as a stem canker)...whether it is P robustus or P badius.

Ekka

Bad location for a removal, round-a-bout, power wires etc .... it's a busy place that intersection. It'll be traffic control and a 3 hour time slot middle of the day or weekend. Due to proximity of other trees the stump grind will have to be just a lick off the top.

How long before the fungi spreads to the other trees?

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JayD

hmmm, could be, Ganoderma applanatum,?? I.D, Field guide to Australian Fungi
by Bruce Fuhrer, pg 253 if you have this book take a look ?

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Sean Freeman

Thats almost impossible to say Eric, three main factors influence the interaction between host trees and decay fungi:

1.The environment...microbial growth conditions
2.Host...susceptability of wood tissues
3.Decay fungi...the inoculum potential

If any of these conditions are not conducive to the growth of the fungi then it just won't happen at a pace that would be obvious to us.

That being said highly likelty that there are similar problems in the adjacent tree on the other side of the path. Let the VTA symptoms inform your assessment and be systematic and rigorous if you are writing anything down.

Long term things don't look great for that tree.

Sean Freeman

That is a good book JayD, but it certainly does not have any of the key characteristics that I would expect in the fruiting body of Ganoderma applanatum

Ekka

JayD,

Ganoderma is way different underneath, sort of whitish and you can write your name etc, called the artists conk or something like that. Also it's flatter, this is more bull nose shaped.... got that idea from the bull nosed verandah

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JayD

Ok, no dramas, just putting 0.2 cents worth in, you all seem to know what it is anyway all I did was refer to my fungi book and there was not much differance between the two.
I also googled it and P.robustus was all over the shop on appearance.

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Level 4 Arborist/ FPIFGM 3204A: Fall trees manually (intermediate)

Arboriculture, A life long study for some, a passing phase for others

Sean Freeman

JayD the internet is very bad for providing reliable visual id for the fungi we find in Qld and Nth NSW, or indeed many of the other states/territories.

Two very good books are 'An introduction to fungi on wood in Queensland' Ian Hood, and 'Fungi out West' Chinchilla Field Naturalists.

Also if you have the passion join FungiMap based in Vic (or rather started in Vic no across the nation almost) Australia's Fungimap - Welcome to Fungimap

treerep

The tell tale will be in the scleretal socks within the root system if it is in fact Phelinus spp. The infection to adjacent trees is soley dependent on individual tree vigour and certainly not a conventional idea that this can be spread throughout all adjoining trees. The likelihood is great that all trees within a vicinty to be affected are high but this does not preclude cultural practices and a trees natural genetic ability to withstain.

Ekka

It's a stump standing there now, maybe 10' high waiting to be finished off.

Unless the removal/grind crew inform us or take pics we'll be none the wiser as to what it was like.

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