alliaria
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Everything posted by alliaria
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Dynamic Wind Loading & Biomechanics Seminar
alliaria replied to David Humphries's topic in Training & education
I,m going to the Kew seminar next Monday, I think it may have sold out. -
Hi, my two pennerth worth. The entire margin is confusing me, and the assymetrical leaf base. Anyway is it a Sapindus sp. poss. drummondii? thats the second lot.First lot looks like Phellodendron as said before, maybe a Tetradium daniellii.
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Twice a year? Cor lumee
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Oh and I thought the root plate had moved and restabilised, but I,m not absolutely sure of that.
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Hi Catweazel, The fruiting bodies were all around the trunk up to about 1.5m and I found that initially worrying, the 2 ribs on the tension side indicated a weakness and probably an underlying crack that I thought would impact on the stuctural integrity of the primary fork at 5m. There was some peripheral canopy dieback but very little. Kretzschmaria doesn,t seem to impact on the canopy until the latter stages, I suppose the vascular system in this tree is still largely unaffected. The buttress root to the left was completely decayed. I thought about a Static load test and reduction as a tree nearby was scheduled but after a number of increment boring explorations (and i,m not particularly happy boring into trees, usually a last resort) I came to the conclusion that the whole tree was compromised. I wanted to monolith but was dissuaded.
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Heres one I did earlier, on sycamore.
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Hi Xerses and Sloth, Thanks for the replies, the tree is indeed in ill health with extensive dieback throughout the crown. Cheers.
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Hi. Has anybody any idea what this is, found on a Cedrus libani, yellowish and very mushroomy smell, on dead/dying bark and below. Sorry about the poor quality pics. The blackened area is fire damage I think. Cheers.
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Great pics, Sean, all the best in your new job.
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Where are the reports, or am I missing something......as always.
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Polyporus squamosus - extensive white rot.
alliaria replied to David Humphries's topic in Tree health care
Hi, Just been to see a sycamore with obvious P. squamosus brackets on trunk associated with extensive historical lifting, and Rigidiporus ulmarius present as well. Veterans in the strict sense, but target rich as they say in the old US of A. so will remove, no pics unfortunately, is this a common combination? Cheers, Leigh -
Dodonia viscosa?
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This was my preferred option, but there is an access road directly below. Thanks for the info. on the likelihood of retrenchment initiation, bracing is a possibility, and an end weight reduction with a thin sounds good. I am just touting for ideas, it is quite an iconic tree. I.ll get some photos. Ta very much.
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Hi All, Has anyone any experience of reducing a Cedrus atlantica, about 175 years old. The tree has many historic branch failures and has many potential targets. The crown is assymetrical, with most failures are to the eastern sector of the canopy, although there is a prevailing S.W. wind. I intend to reduce by about 10% and attempt to initiate a new lower canopy, ie retrenchment. Has anyone any experience of pruning old cedars and the likely response ? Cheers.
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or nana
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Betula pubescens?
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Looks like it, usually has a characteristic hooked terminal shoot. I dont think it is notifiable anymore.
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Fern leafed Beech, sensitive reduction, you are the man for the job.
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Bloody predictive text...apomictic not apolitical
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Hi, I think there are two reasons for Sorbus bristoliensis, it's apolitical and therefore readily forms clonal groups that are arguably sub species and the gorge is one of the most studied areas in britain, I think these geographical subspecies are probably fairly common, they seem to be in sechzuan and other ares of china and in the welsh coalfields. But I may me talking bollocks. Wouldn't,t be the first time, see you in Victoria square Sean. Cheers
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Hi All, Well now the first year is over what do people think? Worth doing? I think so, the science has been interesting and enjoyable and I,m looking forward to next years modules. Any tips from you students who,ve finished or are going on to the third year will be gratefully received. Cheers.
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Volvariella?
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Sorry, the blackened area also has raised bark.
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Hi, The tree is a Cedrus libani, I did sound with a hammer revealing a number of discrete areas with raised bark, but none associated with the blackened bark areas. I haven,t removed enough bark to determine extent of occlusion, but I will today. Decay spreads into buttress roots where I can see. Will do some digging and take a lens today. Cheers.
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Hi Jesse, there was no smell of turps.
