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David Humphries

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Everything posted by David Humphries

  1. Some impressive Laetiporus fruiting over the last few days down here in the balmy south. This particular host hasn't had fruit bodies for the last couple of years, guess it probably has a rest year after putting such a large set of sporophores.
  2. Look like Velvet Erineum galls caused by tiny eriophyid mites, not seen that before. Not a fungi though.
  3. Got a little concerned when a tongue came out of the end of it and 'licked' my boot cap
  4. A single rhizomorph string strikes out from its host in search of new meat
  5. Continuing the Armillaria rhizomorph theme in this thread. various images showing extent of rhizomorphs growth. last image where the host wood volume had completely decayed away to nothing.
  6. Got a bit of a soft spot for Owls, so reckon next time I'm in this pen I should leave the gate open for old Eddie here to have a taste of the wild.
  7. Probably clear wing hornet moth exit holes. Sesia apiformis I've seen decay associated with these invasive holes (probably Ganoderma white type rot) so a bit surprised that the tomograph looks clean. can you go cut it down for us so we can compare Does this Picus set up have more than 16 sensors?
  8. Don’t eat Laetiporus from Yew trees.The mycelium and fruit bodies absorb the toxins from the wood and bark. Many people have been known to become very unwell after ingesting Chicken of the Woods from Yew trees.
  9. No, this is Laetiporus sulphureus, the chicken of the woods.
  10. I'll try and find out. it won't be cheap but it's about increasing awareness of tree benefits to the public and the bean counters ergo increasing/maintaining budgets, so potentially a very worthwhile exercise.
  11. The Royal Parks have recently commissioned Treeconomics to undertake an i-Tree report of the tree stock of Hyde Park in Central London. Some of the headlines; There are 104 species (45 genera) London plane make up 37% Common Lime 10% Sweet Chestnut 6% Horse chestnut 4% English oak 5% Small leafed Lime 3% Silver birch 2% Ash 2% Hawthorn 2% Norway Maple 2% Others 26% 3,174 trees recorded (trees measured over 7cm dbh) 34.5% tree cover (that's a lot of shade) 12.8 million visitors every year Kensington Gardens to the left, not included in the report. 2.71 tonnes of pollution removed 3,872 tonnes of carbon storage 88 tonnes of carbon sequestered 260 tonnes of oxygen produced £172,843,688 Amenity valuation (CAVAT) £12,246,490 Replacement cost 2479 trees are in Excellent condition 676 trees in Good condition 10 trees in Fair condition 6 trees in Poor condition 3 trees deemed as Critical condition The main (current) threats from P&D come from Massaria disease of Plane & Oak Processionary Moth. These are just some of the interesting headlines that have come from the report. Thanks to Ian Rodger Arboricultural Manager at the Royal Parks for permission to share. The full report will be available to download from Treeconomics website.
  12. For the Yew? If so, then no special measures in terms of root protection.
  13. Our team has had the privilege to play a small part in an ongoing study program surrounding the Sweet Chestnut trees at Greenwich Park with foliar and soil treatments. This Workshop has first class leaders/speakers, and is set in a fantastic historic Royal Park in South East London close to the banks of the River Thames. There are approximately 100 places available for this Work Shop but places will undoubtedly go quickly..
  14. Heads up for an upcoming training opportunity on soils and tree diseases hosted by the Royal Parks & Treeworks Environmental Practice SOIL HEALTH & TREE DISEASE: A STUDY WORKSHOP - 6 JUNE - Greenwich Park THIS DAY-LONG FIELD-BASED WORKSHOP WILL EXPLORE THE SURROUNDING CONTEXT, UNDERLYING PROBLEM AND PRACTICAL SOIL-BASED SOLUTIONS RELATING TO SWEET CHESTNUT INK DISEASE AND TREE DIEBACK. WORKSHOP LEADERS: Prof Lucio Montecchio is Professor of Forest Pathology & Ornamental Trees Pathology at De Rebus Plantarum, a spin-off of the University of Padua. His research includes the composition of mycorrhizal communities in relation to forest decline, the ecology of endophytic fungi, epidemiology and dynamics of forest diseases, and biological control Neville Fay, an ICF registered arboricultural consultant, is principal consultant at Treework Environmental Practice and founder director of the Sustainable Soils Alliance which aims to deliver degraded soils to recovery. He is involved in tree health and soil studies affecting mature trees in decline. Dr Elisa Dal Maso is a post-doctoral researcher in Plant Pathology at the University of Padua. Her main research topics include ecology, taxonomy, diagnostics and forecasting modelling on the relationships between ectomycorrhizal communities and root-tip parasites Ian Roger is the Arboricultural Manager of the Royal Parks Dr Elizabeth Stockdale is Head of Farming Systems Research at NIAB and a member of the Sustainable Soils Alliance Science Panel Simon Parfey is the founder of SoilBioLab If this is of interest, please click the link below for booking details... http://treeworks-seminars.co.uk/soil/
  15. At the other end of the scale from the red oak reduction above, here's a little experiment I've been watching for the last 10 years or so. Yew tree that was in the way of development. One of a pair that were down for removal. Rather than fell both we topped one to see what would happen. The Chicken of the woods (Laetiporus sulphureus) doesn't fruit every year and varies as to where it pops out. April 2007 May 2008 May 2009 June 2010 May 2018
  16. Ta, but it's a pretty photogenic fung the old chicken, and of easy virtue, didn't even have to buy it a drink.
  17. Ganoderma pfeifferi fruiting out between two of the buttresses on a beech
  18. Ta, but I just point the finger a bit, saddle work by Dendrophile & Jack
  19. May of posted this earlier in the thread, but this is an update as there's been a new growing season. Red oak colonised by Ganoderma resinaceum. Just a tickle.....

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