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Marrickville Council has put up notification that they want to remove a Wallangarra White Gum (Eucalyptus scoparia) outside 1 Park Road, Marrickville (actually on Addison Road).
Reason for removal:
- An independent arborist’s aerial assessment identified the subject tree as having an open cavity on its main stem at 4 metres above the ground.
- Resistograph testing found that decay associated with the cavity accounts for 73% of the diameter of the stem at the point of testing & consequently the residual soundwood at this point constitutes 27% of the stem wall.
- Stem failure potential has been established at starting in the range of 35-30% residual hardwood, with the frequency of failure increasing from 30% & lower. Therefore a stem with a residual soundwood shell of 27% presents a significant & unacceptable risk of stem failure.
- Stem breakage would result in the tree falling onto Addison Rd, resulting in the possibility of serious injury or damage to persons or property.
It is great that Council is providing detailed information for the tree removal & that they are removing trees that are not healthy & for good reason.
It is obvious this tree is in decline & presents a significant risk of falling. It’s a shame
because it is a lovely tall tree & has a circumference of at least 3.5 metres. It does have a considerable lean over Addison Road.
Council will replace this tree with a Spotted Gum (Corymbia maculata) though they don’t indicate when they will do this.
The deadline for submissions is 23 July 2010. I will not be putting in a submission. Thank you to Council for fixing up the link quickly.
We also went to have a look at the 2 Casuarinas that are to be removed so Sydney Water can repair a main water pipe. They are nice mature trees & it’s a shame they have to go. However, the Norfolk Island Pines (Araucaria heterophylia) that line the road to Tempe Reserve are close by & replacing these Casuarinas will be a better fit in the scheme of this area.
Marrickville Council intends to remove a Eucalyptus scoparia (Wallangarra White Gum) outside 19 Audley Street Petersham.
They give the following reasons:
- • Extensive internal decay caused by Phellinus fungal decay pathogen. The presence of this pathogen is evidenced by numerous ‘bracket’ fruiting bodies along the trunk of the subject tree. There is no cure for this parasitic fungal pathogen & trees affected will eventually fail due to the reduction in strength of the heartwood caused by the spread of the pathogen.
- • Extensive basal decay which has predisposed the tree to predictable failure due to hollowing & reduction in strength of heartwood.
- • Extensive dieback of canopy & excessive epicormic shoot growth indicating extreme/ terminal levels of physiological stress.
They intend to replace it with an Angophora costata (Sydney Red Gum), but don’t say when they plan to plant this tree.
I went to visit the tree today. It has been poorly pruned in the past with many thick branches on one
side removed & leans as a result. The tree is quite tall, at least 10 metres & has a lot of foliage at the lower third of the trunk. The upper part of the tree has extensive die-off, which has been happening for a number of years. The ‘bracket’ fruiting bodies are clearly visible on the trunk & start at an area that looks to me like a past major injury. This tree is not in good condition & I agree with Council that it should be removed. I hope they do not wait too long before they plant the replacement tree.
I am pleased to say that once again Council used sticky-tape to attach the notices of removal on the tree & both were still attached. This looks to be a permanent change away from the practice of nailing the notices, so I thank Council for this. I also thank Council for giving detailed information explaining why the tree should be removed. This is also a positive & inclusive change.
The deadline for submissions is 23rd June 2010. I will not be putting in a submission.