ScottF
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Everything posted by ScottF
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A new British Standard for tree planting is being considered by the BSI. Given the still very patchy quality of urban tree planting I see, I think it may be very timely. I get rather frustrated when I see lovely heavy standard tree being shoved into a tiny hole into made-up ground of the worst quality with the water table already rising below. Details can be found on the Arboricultural Association's website: Tree planting and establishment: your views needed on proposed new British Standard. - - Arboricultural Association How many of you Arbtalkers get involved in urban tree planting?
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An amazing sentiment. "If one man can show so much hate, think how much love we could show, standing together." -Stine Renate Håheim, survivor This is how we overcome lunatics like this.
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That's a point actually; whenever I've seen it in stands it's normally because an edge has been exposed. Still, I was told by a better pathologist than me that grey squirrels are a demonstrable vector, both in terms of wounding and transmitting spores.
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I like the huge rip the guy inflicts despite undercutting in the video. Helmet power!!
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Any squirrel damage further up in the crown? Tree rats are a known vector
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Severe case of beech bark disease (Nectria spp.) I would have thought
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That's the one.
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There was an excellent series of photos in an article by Neville Fay recently in the ISA newsletter, which showed the effects of restoration pruning an oak over a period of 100 years, from a top-loaded tree with epicormics back to a low-spreading and balanced crown, presumably through a series of timely and light interventions. I'll see if I can get permission to post them here. Super thought-provoking. Check out the photo on page 4 of the most recent article. Obviously, thanks to the author... http://http://www.treeworks.co.uk/press_releases_publications.php
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Concentrated nitrogen of the sort you'll get under a chicken run will be fairly toxic to just about anything woody. Particularly if the clay is preventing it from leaching away. The two trees which died are both fast-growing, so will potentially be absorbing the N faster. The oak and the chestnut are both potentially deep-rooting, so may have their feet in the clay and not be getting hit with all the N. Maybe move the run around from time to time, or throw some chips or straw into the run to mop up some of the droppings and compost it away from the trees. We we all newbies once.
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@ Tony- Yep, you're right, that doesn't read well does it? I'll change that. Cheers. @ELG- cheers for that. Pithy's the aim
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prop it!
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True, Tony, but I think what people think of when they think of decay detection (and I'm happy to be wrong about this), is finding out "where" and "how much" decay they're dealing with, and ideally the causal agent. By Dr Catens'a admission, TI does not (currently) do this. That said, the assessment of vitality as a piece in the puzzle (not to mention how quick and inexpensive it can be), is what's made me follow the development of TI as a technology, despite some early misappropriation of Dr C's work.
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Great pics, Gerrit. Very clear and instructive. Does photo 2 show successions of partial occlusion and then marginal necrosis? Cheers
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There's currently nothing in the literature to suggest that this is a reliable means of directly detecting cavities or decay in trees. When you used it previously, did the thermal imaging results suggesting cavities correspond with actual cavities?
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Have made some superb, and apparently pretty durable 8"x8" bollards out Macrocarpa and they look fantastic. Beautiful grain and takes oil well. There's some pictures at Flickr: green concepts' Photostream somewhere in the "design and build" set.
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Aberdaron down on the Llyn Penisula has a lovely beach, great views and a couple of cracking pubs. Accommodation and great food in both. Glynlliffon on the way to Pwllelli nice woodland and walks- good for a rainy day. Porth Colmon on the North coast of the Llyn peninsula, lovely beach, great fishing, good campsites (B&Bs there I seem to remember). Ffestiniog railway pretty cool for a day out, slate museum in LLanberis free, Electric mountain in llanberis interesting. Spoiled for choice, mate. S'why I lives here.
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Out of interest, what are you hoping to determine from the thermal imaging? Dr Catena's presentation at the Arb conference suggested that thermal imaging can be sued without "expensive software" as a tool to investigate vigour and heat exchanges within the tree. As such, it might certainly be something worth looking at. He does not claim that it is a decay detection tool, and recent research suggests that it is not reliable in detecting cavities, let alone their extent and significance.
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I inspected an avenue of HCs near a nursery in 2001, some of which were starting to show signs. After 10 or so years of watching them, about 40% of the 104 trees have survived and with a bit of retrenchment, would probably look OK, bar some disfigurement. It just makes me wonder whether certain trees with a genetic resistance or robustness will survive and provide a new genetic cohort for the specie, and the rest will succumb. Sounds a bit ruthless, but nature can be a bit like that.
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Thanks, Paul. The last site I had was the other way around, so I'm much happier with the balance. I took all the pics around here.
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Hi All. Just finished our new website at long last. Still some bugs to iron out and things to add (case studies, some more links etc), so would welcome comments or thoughts. Thanks in advance. Scott Fairley Arboriculture and Landscape Planning North Wales
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brilliant pics, Dave
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I'm with Tony in putting K. deusta in the frame.
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Push the thorns over to one side with the palm of a gloved hand. You're gonna get stuck- Savlon at the ready
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Managing Trees with Decay & Dysfunction
ScottF replied to David Humphries's topic in Tree health care
Great thread, Dave. Very interesting. -
Take a cutting. Get it grafted. Grow it on.
