David Humphries
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Everything posted by David Humphries
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looking a little closer, my glamorous laboratory assistant informs me that there appears to be perhaps other bugs at work. The holly leaf miner suposedly only lays one egg per leaf so these small doughnuted circles are perhaps the larvae of another leaf miner or gall insect? .
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The Holly leaf miner - Phytomyza ilicis larvae becomes a small black fly (not seen that....yet) .
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Pah, a minnow in comparison you've seen the national height champion, no? Its less than a kilometer from the one above, nearly 26m ! http://arbtalk.co.uk/forum/picture-forum/56106-uks-tallest-wild-service-tree.html This area of North London is relatively blessed with mature Wild service .
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do you mean what the 'Dutch Mycologist' said ? or what is in 'Fungal Strategies' ? I'm a little confused Gerrit J. Kiezer (the Dutch Mycologist) posted this on an old thread about transmission via root contact....... I believe Gerrit had access to the work Swartze, Engels & Mattheck .
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With the described level of target it would seem prudent to err on the side of caution. I've been managing some trees infected by K. d by re-balancing the weight toward a fail away from target. But it sounds like your situation doesn't warrant that style of management. Do you have any images of the tree(s) in situ? .
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Me jealous .
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Intriguing, I remember a well versed Dutch mycologists stating that there was (as far as he was aware) no studies that had proved that. I'll give it a read tomorrow, thanks for tracking it down. .
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I don't think I have Jules. Neither David Lonsdale or Claus Mattheck suggest this in ' Principles' or Manual of Wood Decays' respectively. Heinz Butin suggests that Kd is a sapwood exposed strategist. If you find the reference I would be interested It's also noted and seen often, as a necrotrophic saprophyte. Persisting on dead stumps for many years. .
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Yeah we've talked about various options in this thread, some of the better ones can be found in the guidance document from the London Tree Officers Association 'Damage to trees by dogs: Best practice note' .
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I'm realy loath to fence these trees off or even wrap them in chestnut pailing, as it will look pants. I think we may give the chilli powder treatment a go in the short term and see how that goes. .
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Grrrrrrrr .
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Scale insect, possibly one of the Pulvinaria species Sap suckers .
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Kretzschmaria (Ustulina) deusta is a sapwood exposed strategist and spreads by spiting its spore (ascomycete) as opposed to dropping its spore (basidiomycete) The spore enters the tree through wounds in the trunk, buttress and exposed root bark. As the spore will be everywhere it doesn't require root grafting (anastomosis) to spread its mycelium to other local trees. .
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saw this documentation once before and admired the logistics of getting a bunch of people together to talk and look at things like this. Perhaps I could talk to the good burghers of burnham to let us have a go at severing a few segmented vascular tracks to record how quickly the associated sections demise All in the name of science of course .
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Relatively low foot traffic, and reduced to an extent that it will likely crumble away slowly with its white rotting recyclers at work. .
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4 years on from the reduction and the beech is looking pretty good supported by its functional roots and providing continuing habitat due to the Pluerotus & Oudemensiella with in the dead sections. .
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The area below the tree had regular footfall so we felt the dysfunctioning canopy parts should be reduced down to low retained habitat poles and the remaining functioning canopy parts reduced to lessen the sail area of the canopy. .
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after air spading out the root plate to look at the decay, we found that there were roots not affected at that point and were still viable and had good vascular connection with their associated canopy parts. .
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Here's another interesting example of segments of root plate supporting individual parts of tree within a heavily Meripilus infested beech...... these images were taken in 2008 Showing the associated dysfunction in the crown where the connected roots were in decline due to the Meripilus .
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I think perhaps you posted too soon Tony. the point of my example was given in the post before yours (P-22) .
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Mini Cranes | Spider Cranes - for Hire & Sale Would use again, operator was good. We had a very tight working envelope which he coped with well I'd be more insistent on tree reduction experience next time though. .
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With the lifting capacity.....yes With the destruction of urban habitat ........not so much .
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.....or so we thought turns out that it had one single root vascular flow still connected to one low latteral branch. 6 years on and its still functioning as an autominous tree part. .
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We reduced it down to its core branch frame work and left it as a heavily coroneted dead standing monolith. .
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Sycamore that succumbed to Cryptostroma corticale (Sooty bark disease) in 2008. .
