alliaria
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Everything posted by alliaria
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Hi Matthew, there is fairly extensive dieback in that sector, and tip dieback throughout, although that may be climatic.
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or even lower canopy dieback..doh
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Hi All, Looked at this Cedar today, extensive upper canopy dieback, the trees about 150 years old give or take a decade, not good at ageing trees, but I would expect it to be contemporary with other trees close by. Anyway, spotted what I thought was Kretzschmaria at the base with associated raised dead bark. I,ve never heard of this on Cedar, so I thought it may be some other Ascomycetes because it was unlike normal K. Dug around for rhizomorphs, none to be seen, though I always suspect Armillaria in there somewhere. Peeled off the dead bark and the decay/colour underneath resembles Phytophthora. Anyone with any thoughts? Cheers
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Hi, Thanks for all the replies, as I said my first reaction was canker on carnea, gosh, no worries, but the depth and situation made me think again. No fruiting bodies, some dead bark above, very little exudation. I took a carnea down in my reckless youth covered in canker and Rigidiporus, no sign of decay in the main trunk. So, maybe just leave it alone? Cheers
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Thanks both, I am thinking about a reduction, 10-15% then monitor.
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Hi All, I was asked to have a look at this A. x carnea with canker, my initial reaction was i,ve never seen one fail with canker alone. But this seems to have significant issues at the base. Has anyone seen a failure with these symptoms? Fairly high occupancy rate. Sorry about the poor shots, I,ll try and get some more. Cheers, L.
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Thanks Robarb, doesn,t sound too bad.
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Cheers Robarb , what about tree biology and how do they assess ID skills online? Leigh
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Just finished Applied soils assignment. Anyone got any ideas about good books for the dendrology module?
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Hi Jon,
I,d like to apologise for recent posts concerning yourself and the online course at Myerscough. They were misguided, naive, and personal. I have no excuse but I can assure you this will not happen again.
Regards,
Leigh
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Hi Both, I am actually enjoying the subsidence and microtubules bit of the 1st year. I also haven,t really put too much time in until now but have put a lot of effort in reading around the subsidence assignment, Giles Biddles books are awesome but complicated, for me anyway. Next year should be more challenging, but more interesting I hope. We should all get together somewhere suitable for a beer and a gripe sometime. Cheers, Leigh
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Hi, Brilliant lecturers, but the structure of the course makes it subjective, turns out Dave Dowson and Andy Summerley mini mes. They write, teach, and assess the course. there seems to be a conflict of interests. I have great respect for them both but think access to a wider knowledge base would be advantageous.
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Thanks Gerrit and Hama much appreciated.
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Hi Gerrit, What is the significance of the herbaceous layer in respect to endomycorrhizal fungi? Isthis to do with Pholiota squarrosa acting as a secondary pathogen on an already weakened defence system? Cheers.
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Yes I would imagine Catalpa sp. would have a fairly weak response.Just guesswork mind. Cheers.
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Hi All, Yep, the title says it all, has anyone any info. on the pathogenicity of pholiota on Catalpa? Cheers
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Hi Chris, I haven,t started it yet, I,ll get it done this week and over xmas, I thought the biology assignment was tough.
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:001_smile:Sorry Bears not Swans, I am losing it in my dotage.
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Yes, It is not helping thats for certain. I played rugby for Tewkesbury in the 80s, good place, the club was by one of the Swan pubs, black or white, used to drink in the back bar of the Berkeley, happy days. Cheers.
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hi, I,m in the first year, I find it very frustrating waiting for tutors to answer queries, it can go on for weeks. Most is ok, but I need to be more organised.
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sorry i have no idea why those caps just happened
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Hi all, WHAT WOULD YOU RECOMMEND Hi, Recommendations then, good response/reaction growth, I have no idea if the roots are compromised, would Pholiota be a secondary pathogen?
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Cheers Hama, Good reaction/response growth on partially occluded woundwood and to the rear of the cavity, I shall do nowt,
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Hi, According to the literature this is an intense white rot that can lead to brittle failure or a saprobe, which I assume to be a secondary pathogen. Got it on a Lime cavity at about 1m. Will post photos. Just wondered if anyone knows about the potential pathogenicity of this fungeee! Cheers
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Cheers Hama, The tree is probably about 200 years old, wonderful open grown specimen, I have no intention of intervention, pointless. I,m thinking about a change in mowing regime and temporary fencing, leaving long grass etc.
