Paul Melarange
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Everything posted by Paul Melarange
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It's not K.deusta. It most likely to be Biscogniauxia nummularia. It's common on dead beech or large dysfunctional parts of beech.
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Here is John White's method for estimating the age of veteran and ancient trees. I have used it to calculate the age of just mature trees too. http://www.ancienttreeforum.co.uk/wp-content/uploads/2015/03/John-White-estimating-file-pdf.pdf Alternatively you could use a resistance drill eg Resistograph or PD to measure the thickness of the annual rings, then calculate it from that.
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I've just looked at the pic on my computer rather than iphone. I still think the leaves look narrower than those of H. helix. Although knowing how ubiquitous H. helix is, I guess it is most likely to be that. Just out of interest Roscoe, is this ivy tree/bush located within a garden or it is public open space/countryside?
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It's difficult to see from the pic, especially on my iPhone, but I think it is most likely to be Hedera nepalensis.
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Tree identification database
Paul Melarange replied to Steve Bullman's topic in Tree Identification pictures
It looks more like Pyrus calleryana. -
Sonic/impulse tomography is where it's at for mapping decay 😀 seriously though there is equipment out there such as the PD400 resistograph, Picus tomograph and Arbotom tomography unit that will provide you with much more information about the integrity of the stem. I would recommend finding a local consultant or arborist that has the equipment to come and test the tree for you.
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Who's going to The Arb Show 2017 next week?!
Paul Melarange replied to Giant UK's topic in General chat
I'm going to be on the ancient tree forum stand again this year. It would be great to actually meet you arbtalkers in person, so please call in and say hello. I'll be giving a talk tomorrow at 11.00 on assessing the stability of hollow trees, as well as demonstrating the Arbotom sonic tomography unit, so if you're interested come along. I look forward to meeting some of you over next couple of days 😃 -
This very sad news. My thoughts are with his family and friends. Sean your idea of planting a tree in memorial is a great idea.
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It looks like it might be Purple Passion plant (Gynura sarmentosa). Hard to tell though from the photo.
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I'll take a punt at Trametes versicolor and Stereum rugosum Expecting to be corrected by either David or Chris 😀
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Hi Harry They are galls. Are these lime leaves in the photo?
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Looks like Griselinia littoralis
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Hi Gary, I hope all is good with you. Richardson's Botanical Identifications charge around £60 for 1-2 roots. I haven't needed to use them for a little while, so this price might be a touch higher now. Hope this is of some use. Paul
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Ah ha, I knew something was amiss, just couldn't put my finger on it! 😀
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This new mulching technique seems to be all the rage at the moment 😏
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Hello Ty, May I ask what work was carried out on the tree (in addition to the removal of the wind damaged and dead branches) and what risks were discussed with the client? Do you have any information on what part failed e.g. Union of co dominant stems, uprooting etc? I agree with Edward. If they were concerned about the tree they should have had it inspected more frequently. A lot can change within four years.
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Are you certain that it's Phytopthora? Have you used a testing kit or sent it off for analysis to confirm this?
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It's probably Prunus avium 'Plena'
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Very interesting. Where is this Steve?
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Curious - A sapwood rot on Amur Maple ??
Paul Melarange replied to Khriss's topic in Tree health care
There doesn't appear to be a root flare! Is it possible that the ground level had been raised or they were planted too deeply? -
I'm keen to hear David's thoughts on this. From my point of view I think it would be great to stimulate some discussion. It was really interesting to see Guys responses. It was particularly interesting being able to compare the most common places where veteran trees can be found in the US, with where we would expect them to be found in the UK.
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Hi Alec Picking up your point through completion of the survey would definitely be useful. Please do have a go at completing it. Your thoughts and input are much appreciated. Thanks in advance Paul (Co-opted member of the Ancient Tree Forum)
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I should add that if a tree, made up of a number of semi autonomous units (I.e. a veteran or ancient tree), has a very small wind load and a large carrying capacity/stem diameter, the risk of it failing in sheer or compression is much reduced. Hence how veteran and other veteran trees can exist in this state.
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Hi Alasadir, I hope all is good with you. You are quite right regarding the issue of semi autonomous units. The tree statics model is based on the wood failure in compression (wood is weakest in compression). Strength loss can be calculated using section modulus (the distribution of the material) where gaps (open cavities) in the residual wall are incorporated into the calculation. However, the model does not allow for sheer failure or torsional failure. It is worth noting that a lot more force is required for a wood to fail in sheer as opposed to compression. That said, the risk of sheer is increased when the residual wall is below t/R 0.1 (10%) because the stem/cylinder can separate into semi autonomous units which start moving independently of each other e.g the tension side vs the compression side. I hope this makes sense?
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Hi Jake Here is a paper which might be of interest. Best regards Paul How Hollow May a Tree Be_Neue Landschaft (11) 1996_Tuin & Landschap (15) 1998.pdf
