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David Humphries

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Everything posted by David Humphries

  1. David Humphries
    Slime mould on hawthorn from earlier today...... Enteridium (Reticularia) lycoperdon .
  2. David Humphries
    Two separate stems fused when their cambium came together and they then grafted. By the looks of the stub, the left stem died off at some point. .
  3. David Humphries
    Not entirely convinced that its fungal in origin. Perhaps an exudate that has solidified. Though I wouldn't entirely rule it out as a jelly fungi. .
  4. David Humphries
    Glad you liked it Paul, always nice to pass on how not to do it he's OK, its getting him to clam up is the problem
  5. David Humphries
    I think they are desiccated Pluerotus sp (possibly P. ostreatus) If its tree specific fungi that you are interested in then you could try the Arbtalk Fungi Id app for smart phones and/or the AA Fungi on Trees (an aborists field guide) For general fungi books have a look at Roger Phillips and/or the Collins complete guide to British Mushrooms & toadstools .
  6. David Humphries
    may be Pluerotus for the first one But a better image showing the gills would help .
  7. David Humphries
    I can't make out enough detail on the first image but agree with Swinny that the second image shows the fruit bodies of a Kretzschmaria duesta, which will eventually lead to trunk/root buttress failure as it parasitises the wood volumes destroying the cellulose and lignin via soft rot. Kretzschmaria duesta (Ustulina duesta) - David Humphries’s Fungi Directory - Arbtalk.co.uk | Discussion Forum for Arborists .
  8. David Humphries
    Bleeding ooze type gig or jelly like? .
  9. David Humphries
    Drift HD Ghost is our camera of choice, we had a play with a go-pro for some veteran tree footage but the design/shape of it was a nightmare amongst the frithy canopies we generally work in. Forever get knocked out of position. No problems with the more torpedo shaped design of the drift. Hadn't thought of or seen the low mount though. Reckon the frithy stuff would still get behind the profile and potentially dislodge it.........Drew ? The go pro has a slight edge on quality but unless you're after publish quailty then its not that big an avantage from our perspective. .
  10. David Humphries
    Video of said climb, nothing too exciting but something for both Tom & us to reflect on. [ame=http://www.youtube.com/watch?v=C3BzgrgG-1o&list=UUL-sm0tQbrnXZyqnrpGT_7w]Tom Plane - YouTube[/ame] .
  11. David Humphries
    Ganoderma resinaceum would be my guess .
  12. David Humphries
    Squidgy like an annual bracket or hard like a perennial type? .
  13. David Humphries
    Thanks Jerry, interesting little read. Good to see native replacements suggested Do you know if there are any plans to erect bat boxes at the site to mitigate the loss of good habitat species? .
  14. David Humphries
    How can you be sure you're not inflicting cambial damage to any unforeseen roots, with the 'wrecking bar' ? What would be the span between each hole ? 20-30 cm's ? 5 for 100 = 5 individual holes for $100 ? .
  15. David Humphries
    Big sticks Jerry, why did they come out? .
  16. David Humphries
    If the rest of the tree and it's connected parts (canopy, branches, trunk, buttresses & roots) are vascularly intact and healthy, then I would imagine that a tree like this one will not see a saprophytic fungal species advancing beyond the dysfunctional part of the tree that it's associated with. Out of interest, do you know if the historic branch failures were due to weak attachment and a specific wind load event or from a known decay pathogen? .
  17. David Humphries
    I thought it was technically a three quarters lunge with a half twist, but hey ho It was in Spain and was the first and only time I've climbed in shorts, not the brightest of ideas .
  18. David Humphries
    Hard to the certain, but i would imagine they are the desiccating fruitbodies of Bjerkandera adusta which is a saprophytic fungi. These types of fungi interact with dead wood volumes which in the case of your oak may be the strip directly associated between the large wound above it and what may be a dysfunctional root and buttress below. .
  19. David Humphries
    Thank You Gareth, that's kind of you to say. Pleased with the opportunity & how if came out. having been in conversation with the editors from the initial invite to do it up to the printing, I have a new found respect for how much work goes into putting things like this mag together. Glad you got something out of it. .
  20. David Humphries
    For sure .
  21. David Humphries
    (Another) young Tom here, on Work Experience from Plumpton college with us one day a week. London plane climb from today retrieving some wind blown hangers and having a check for Massaria Nick up in the tree with him as it was only his third or forth climb with us
  22. David Humphries
    Both yours and Langurs posts inspired me to look back through my own Phellinus files and I've also seen the webs on this species, but not the insects that were associated with them. I'll take a closer look next time I come across the situation. .
  23. David Humphries
    The first one looks fairly self explanitory Jon, but what was the reason for the second removal? .
  24. David Humphries
    Wouldn't place your mortgage on it, I'm no Entomologist Just a web search based on your fine images and a look through some lists of wood associated insect species from a couple of entomology reports we've had commissioned Plenty of white rot in your prunus I'd imagine I'd guess that once there habitat is gone, if they persist in the immediate locale, then they'll just search out the next available host. .
  25. David Humphries
    I think they are the larvae of a thrip (thunderfly) species Imagine they are feeding on the spore of the Phellinus Perhaps Hoplandrothrips brunneicornis http://bugguide.net/node/view/71239#food .

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