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David Humphries

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Everything posted by David Humphries

  1. Did you use any resource to identify it or was it a hunch? .
  2. Trametes sp Possibly Pseudotrametes gibbosa Fungi gallery info .
  3. I don't think this is Chondrostereum. The colour is similar, but fruit body type and location is all wrong. What's the scale? .
  4. Hello Jon, thanks for stepping in and sharing your wisdom and for the subtle typo correction on the correct use of the word "callus". My focus here is more about observing and potentially crudely replicating what would appear to be adventitious buds sprouting from the living edge of (as you quite correctly describe) cambial cell tissue, which can be found (depending on exposure levels and desiccation) along the edges of natural and man made branch tears. To try and encourage new shoots from intact functioning bark (whether nodal or not) we have tried ring barking branches and trunks, replicating what Ted Green and David Lonsdale (and others) have carried out at both Windsor and Burnham, and also tried axe wounding. All to little success so far. I've talked casually with Nev Fay around where the various hormones build up at root, union and tip and how prunning/wounding effects their natural and redistributed presence. I don't begin to understand how one goes about determining the levels of hormones at any given time and position within a trees framework. I guess I'm not a scientist, I'm more an observationist. And what appears to be being observed is that shade and protection from direct sun light might be a reason why adventitious budding can occur. Are your beech pollards street pollards? What diameter have the pollarded branches been recut at? Nice to have trees within such close proximity to a bedroom window. I'm currently looking out at the sterility of a dentists surgery, a pub, a mega grill, an oflicence and a few satellite dishes...........oh to get the Archway Road greened up ! .
  5. Reduction on a pine leaning over a Victorian cottage [ame]https://www.youtube.com/watch?v=sl9W-oCYwuM&feature=youtu.be[/ame] .
  6. An interesting observation on a Poplar we were working on last week. A naturally damaged branch (wind event) with the lower callus toward the north. Buds have broken where the wound is in shade. .
  7. Not really Stevie, as there are many variables. Time of year, orientation, species etc......? .
  8. Looks like the picture should be on entirely different type of forum .
  9. This is the crux I feel, having as much information (understanding of site/target/occupancy, VTA, DD and regularity of inspection) as possible, aids an informed decision, it may not be the correct decision from certain angles but it is a defensible one. This Copper beech will be an interesting case study to follow over the next few growing seasons (and beyond) as it adapts to having a smaller sail (which benefits stability though perhaps diminishes vitality due to reduced photosynthesis) a few shots for visual context for those interested in the tree Chris & I are talking about. We'll put a separate thread up later in the year...... .
  10. I've only ever leafed through the book, as I don't have a copy. That's why I asked. I did ask the author his thoughts about invasiveness of resistographs and other dd equipment and he basically inferred similar to what you state in the last paragraph of your piece. I recall he said something in his finest gutterall German/English along the lines of "Zee problem being, ven multiple vounding on ein single tree occurs each year, it becomes like zee cheese from Switzerland, yah" Apologies Dr Dujesiefken .
  11. Is there nothing in the Codit Principal relating to this subject Chris? .
  12. Couldn't possibly comment !
  13. I know Its an affliction don't you know .
  14. The point worth considering I feel, is that although some of these small rubbery protrusions can look very similar at times, they may have subtle but none the less different modus operendi. These two for example, Auricularia auricula-judae - the Jelly ear fungus (here on London plane, 1st two images) & Auricularia mesenterica - the tripe fungus (here on ash, 3rd & 4th images) could be visually confused with each other, but they have different decomposition strategies. The latter is reported as weakly parasitic on fresh wounds as opposed to the jelly ear being wholly saprotrophic on dysfunctional wood volumes. Though perhaps the degrees of dysfunction on these examples can be debated. .
  15. Mmmm , rubbery protrusions on trees ! Where to start, such a kaleidoscopic array of colorful species of all manner of shapes and sizes .
  16. Pah ! Shame on you Mr Jules .
  17. Lovely work, well done Thanks for sharing. What styles are used across the competition? .
  18. He's getting there, picks up the books when he can and has a smorgasbord of different species every which way he looks on the Heath. You know what its like Chris, the fung bug can be a magical lure .
  19. Hi Jay, it's great to follow the apprentices journeys through Arbtalk and magazine articles. Your own journey has taken you a really long way in a short time, you should be proud of where you are. Shame fate led you to having your apprenticeship at the wrong site, could have been so so much more with us .
  20. Yes it does..........but he never saw it .
  21. Think he knows he's a lucky lad It always a pleasure to give opportunity to where it's appreciated, and to watch the progress grow .
  22. so five months in....... Se is really settling in well to his new career. Good head for heights, healthy respect for a saw and a good appetite to learn the practical and theory side of the job. .

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