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David Humphries

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Everything posted by David Humphries

  1. David Humphries
    I'm sorry to have to report the very sad news that one of our members, sean (Harding), has had a terrible accident at work. Sean has sustained serious trauma to his back, ribs, lungs and neck. It occurred during a rigging operation, there was no system error, it was simply a tragic accident. When he knows more of what happened he will share that with us here in his own time. Please feel free to share your 'positive' messages here as I'm sure he could do with all the support he can get right now. My thoughts are with you and your loved ones Sean and I wish you a strong & hearty recovery my friend. .
  2. David Humphries
    Some folks do, often they are not given the option due to ignorance and risk aversion. .
  3. David Humphries
    But if managed sensitively, the owner and the neighbourhood could possibly have a "crappy ruined oak" for another twenty, thirty, forty, maybe even fifty years. There's actually no rule that I've ever come across that states that trees really have to adhere to what may be percived as a perfect tree form. .
  4. David Humphries
    Looks like Coral spot - Nectria cinnabarina .
  5. David Humphries
    You suppose right, play around is what we do best I've been aware of this particular tree having had P. squamosus for the last 6/7 years (possibly longer) My own observations of P. s on acer species is not good (last image was a Sycamore failure) In my opinion this pollard is worthy of retention (have you seen cappadociums in the autumn?) But not at the expense of one of the team, so hence a different approach. The idea around using a high line on this tree instead of a MEWP is that we can hone the skills of a different technique where access for a machine is limited for future situations. .
  6. David Humphries
    I don't believe we noticed any excessive wear on the line, although we did set a drift cam on the SRT line just below the pulley and it heard/felt all the abrasions of the highline and climbing line. When I get the chance we'll edited all the footage together and post it up. The high line went through the impact block in th Pop and then through a redirect Krab before going across the maple and then in to a crotch in the robinia. In hindsight we think we should probably have placed a redirect up the robinia also. .
  7. David Humphries
    we set 90m of patron above the maple anchored into an adjacent poplar and robinia. The line was tensioned off on the pop using a Hobbs at the base and an impact block in the canopy. Alasdair climbed SRT set on a free running pulley, which equalised itself whilst moving across and within the maple. The tree has been left heavily reduced above the footpath with a lighter touch on the sections away from the target. .
  8. David Humphries
    We had the opportunity to set another highline, this time above a cappadocium maple that has significant white rot (from Polyporus squamosus) in the bolling of where it had been pollarded in the past.
  9. David Humphries
    Must be a glitch on the Arbtalk app It seems ok following a link from the main website. I'll let Steve know .
  10. David Humphries
    Already are http://arbtalk.co.uk/forum/tree-fungi-62.html .
  11. David Humphries
    Not at the moment Adam. Updates to the App are a pretty big and expensive deal. The developer has given a lot of time and money already. But I will add them to the directory. .
  12. David Humphries
    as promissed, a shot of the flesh and tubes which confirm it as Ganoderma Bit of a sneaky offering as it doesn't really look like your typical Gano, I thought it was something different when driving past. .
  13. David Humphries
    Wish you a strong and rapid recovery Andy, glad to see your back in the world of the talk that is Arb .
  14. David Humphries
    Cheers Adam, sucking up won't get you to the front of class though .
  15. David Humphries
    Sorry for the suspense fellas, it is indeed Ganoderma Shall post a shot of its flesh in the morning. As to which species of Gano, that's unconfirmed without microscopy, but I would lean toward australe at this stage. Well done Adam .
  16. David Humphries
    I wish, still trying to find one in my neck of the woods. No, not P. robustus .
  17. David Humphries
    Good guess, but no Adam .
  18. David Humphries
    on Hornbeam, any guesses? .
  19. David Humphries
    Not really enough information and the images are a bit vague. I wouldn't be confident to offer up any species. Can you get any more examples? .
  20. David Humphries
    a previously posted beech that failed mainly due to Kretz but Ganoderma was also partially involved, I'm reposting as we've just taken a slice off it to look at the decay patterns. Remarkable plating between the different colonies of the Kretz. .
  21. David Humphries
    Many congratulations to you and your new family although Fatherhood is taxing at times, it is profoundly the best thing in a mans life.........enjoy ! .
  22. David Humphries
    Jules, here's the comparison. Like I said, its for an article so I don't want to go into to much detail at this point. .
  23. David Humphries
    Jules, the readings on this cross section of lime were taken across both functional wood and decayed volumes. The work is being put together for an article on soft rot and decay drills. When I get back to the office later I'll put up the reading taken across functional wood which we took as a control from the same cross section They make for an interesting comparison .
  24. David Humphries
    Fine shots Tom & Buffalo .
  25. David Humphries
    We took the opportunity to look across the wood densities associated with the different decays on this cross section from the failed lime from post 83. Clearly shows the higher resistance across the soft rot section where the Kretzschmaria prevades as opposed to where the graph drops off significantly through the white rot of the core of the cross section. .

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