Jump to content

Log in or register to remove this advert

David Humphries

Veteran Member
 View Profile  See their activity

  • Posts

    23,485

  • Joined

  • Last visited

  • Days Won

    3

 Content Type 

Everything posted by David Humphries

  1. David Humphries
    Although not seen fruiting on the oak failure (which should be remembered that by itself the lack of Fb's it not evidence of whether a fungal species is present or not) we did note a thin black sheath around one of the root specimens. This may be the melanine plaque of an Armillaria sp (similar to the sheathing on rhizomorph bootlaces) So its pronbably safe to asume that there is the addition of other pathogens to consider when looking for 'the player' in a trees vascular & structural demise. .
  2. David Humphries
    I take it you mean Yew tree? If so then it may be Ganoderma carnosum (also known as G. valesiacum) Similar to resinaceum .
  3. David Humphries
    Shadow Air Spading Cyber-Man ! .
  4. David Humphries
    It's a dainty one ain't it ! .
  5. David Humphries
    Last one is Coprinus species, probably C. lagopus or C. lagopides .
  6. David Humphries

     

    <p>Hello Marco</p>

    <p> </p>

    <p>Sorry but I didn't get there, so can't really help you I'm afraid.</p>

    <p> </p>

    <p>Regards </p>

    <p> </p>

    <p>David</p>

     

  7. David Humphries
    Inosculation, natural grafting. .
  8. David Humphries
    The last contact I had with Alice Holt they thought that this was some form of abiotic factor - hail being a considered guess. I'm not entirely convinced and will be looking at these trees closely during the same period next year. Thanks for the bump. .
  9. David Humphries

     

    <p>Than you</p>

    <p> </p>

    <p>Glad to hear that they're appreciated</p>

    <p> </p>

    <p>kind regards</p>

    <p> </p>

    <p>David</p>

     

  10. David Humphries
    we've disked up a few of the decayed roots from the oak that had failed. As per text, the decay is mostly confined to the sap wood leaving the heart largely intact, but as the roots taper the undecayed heart volume decreases and the affected volumes increase, probably leading to higher potential for failure at that point. .
  11. David Humphries
    Hello Asimina I wasn't confident that the willow would have remained intact with heavily decayed branches and trunk. 3 years on from the first post in this thread and It's still standing and has (as willows can) rejuvenated a new canopy .
  12. David Humphries
    Its a big 'if' (without more I'd features) But if it is, then its probably a saprophyte feeding on dysfunctional material underground. .
  13. David Humphries
    any shots of the stem and gills? look a bit like Melanoleuca polioleuca, but without the above its only a guess. .
  14. David Humphries
    Dissapointed I missed the ones above in their prime. Only really caught one example whilst gutating at height on a trunk, it's not hasn't fruited over the last 4 years .
  15. David Humphries
    I don't recall seeing the fruiting of Collybia fusipes around the base prior to the failure but on inspection the structural roots showed evidence of what looked like a white type rot. The remaining stump has regularly shown Cf fruit bodies since. .
  16. David Humphries
    It failed during a storm in May 2010 .
  17. David Humphries
    Here's an oak from 2007 that I was installing a bat box on. .
  18. David Humphries
    Qué ? .
  19. David Humphries
    Amatuer .
  20. David Humphries
    look to be Pholiota species, but maybe aurivella rather than squarrosa which are more often to be found at height there is an FRDBI record of P. aurivella on lime .
  21. David Humphries
    aborted perhaps, they don't look like they acheived a bracket form. Have you ever come across them fruiting at height Kev? .
  22. David Humphries
    The usually mycorrhyzal Scleroderma citrinum, here feeding on the brown rotted remains of a bit of oak. .
  23. David Humphries
    The mycorrhyzal 'Blusher' - Amanita rubescens one of about a dozen fruiting here on a young beech tree roots .
  24. David Humphries
    What appears to be a pair of desiccated Inonotus dryadeus fruit bodies here (unusually at height) on an old oak. .
  25. David Humphries
    I note in the recent Pro Arb maagazine that they report that Nick Clegg (at the recent State of Nature Conference) has announced that the goverment will continue to fund the research work at RBGK at current levels until April 2015. Doesn't say anything about what happens after April 2015 ? .

About

Arbtalk.co.uk is a hub for the arboriculture industry in the UK.  
If you're just starting out and you need business, equipment, tech or training support you're in the right place.  If you've done it, made it, got a van load of oily t-shirts and have decided to give something back by sharing your knowledge or wisdom,  then you're welcome too.
If you would like to contribute to making this industry more effective and safe then welcome.
Just like a living tree, it'll always be a work in progress.
Please have a look around, sign up, share and contribute the best you have.

See you inside.

The Arbtalk Team

Follow us

Articles

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.