hesslemount

Were the rarer Mattheck or Schwarze books available on Kindle I'd invest but I cannot find them through Amazon! I'm lacking about 8 key books in total but the cost of those 8 is close to £1,000 and I have done an extensive search online. Unfortunately up North I'm not near to an arb library unless I venture to Askham Bryan, York which i simply don't have time to do unfortunately. So as much as it pains me I'm going to list the fungi that I need to know the 'colonisation strategy' for. This, according to Rayner (1993) Arb. J. 17 pp 171-189; is split into 1) heartrot strategies, 2) colonisation of exposed sapwood: unspecialized opportunism, 3) colonisation of intact sapwood; specialised opportunism, 4) active pathogenesis or 5) colonisation of dead standing trunks; desiccation tolerance. The fungi species are as follows: 1) Inonotus dryadeus (oak bracket) 2) Inonotus radiatus 3) Ustulina deusta 4) Laetiporus sulphureous (chicken-of-the-woods 5) Pleurotus ostreatus (Oyster mushroom) 6) Ganoderma applanatum (artists’ fungus) 7) Phaeolus schweinitzii (Dyer’s mazegill) 8) Meripilus giganteus (giant polypore) 9) Bjerkandera adusta (smoky bracket) 10) Polyporus squamosus (Dryad’s saddle) 11) Ganoderma resinaceum 12) Ganoderma lucidum (varnish fungus) 13) Daedalea quercina (Maze-gill) 14) Phellinus igniarius 15) Sparassis crispa (Cauliflower fungus) 16) Pholiota squarrosae 17) Rigidoporus ulmarius Whilst I have bountiful information about these, and other fungi, I can't find the literature or website that definitively gives the distinct 'colonisation strategy' for these species. if anyone knows of such a resource then please point me to the oracle; as long as it's not a rare £100+ dusty cover.

So is it now that Poplar Scab is a bacterial disease as highlighted upon in the article sent by Tony Croft and not caused by Venturia populina as is usually thought? My tutor assures me that photo 2 IS bacterial so is Poplar Scab as reasonable assumption to a correct answer? If so thanks for pointing out that it is indeed a bacterial disease to which I was unaware of. Maybe my literature is a little behind with the times :-). Thank you all for your help & discussion and yes Tony on closer inspection I concur with Photo 1 ;-) but the photo looks very pixelated from my side to say the least. Thanks all ;-)

"There is no limit to what can be accomplished when no one cares who gets credit." - John Wooden So we still have a couple of anomalies but answers will be revealed on marking. No 1 and No 2. No 1 is ash canker OR bacterial canker of poplar and 2 has to be bacterial so can't be poplar scab which is fungal. The photo quality ain't great but what brings you to ash canker and not polar bacterial canker, Xanthomas populi ?

Poplar scab, Venturia populina, is fungal isn't it? If so then it cannot be as it's a photo labelled as a bacterial infection.

Thanks Tony Croft your help is much appreciated and I will follow all your answers up with cross comparisons and other research to be diligent. I agree the answer alone is never enough and the thirst for knowledge is never satiated.

Poplar scab is 1. Bacterial canker of poplar, Bacterium: Xanthomas populi (= Aplanobacter populi).

2 NOT 5 sorry Sent from my iPhone using Arbtalk

2 & 7. I had 7 down as Scolytus but wrong and 5 as leaf blight / silver leaf. Both incorrect. Sent from my iPhone using Arbtalk

I guess my MSc in Biodiversity & Conservation and tropical research work didn't equip me for my career change ;-) Sent from my iPhone using Arbtalk

Only 2 of the 7 to get so I'll keep on searching. Sent from my iPhone using Arbtalk

So prey tell Tony Croft; enlighten us with your wisdom ;-) Sent from my iPhone using Arbtalk

Some (not all) I do actually know. Others need closer inspection. Sent from my iPhone using Arbtalk

£282.50 used. Better get my chainsaws sharpened ;-) Sent from my iPhone using Arbtalk

Hi All, I have photo's of 7 trees / leaves with disorders, bacterial damage or insect damage but need some exact species ID's on what agent is causing the damage. I have numbered each one with a brief label to help. It's part of an assignment and I seem to have exhausted by literature so thought I'd look to you guys. many thanks. Corrections for Brief 12.docx

And like a lot of Mattheck's books will cost me a small fortune. £100 on Amazon. Thanks though as I'll keep looking for this book at a cheaper price. Sent from my iPhone using Arbtalk

Does anyone know of a website, book or journal paper that will tell me the colonisation strategy of species of fungi? Heart rot strategies, unspecialised opportunism, specialised opportunism and active pathogenesis are "colonisation strategies" defined by Rayner, D. M. (1993) BUT I need to know which fungi species exhibit which strategy. I've 20 species to cover and need to allot each one with its respective 'colonisation strategy'. Any help will be very welcomed. Sent from my iPhone using Arbtalk

No external cracks or flares! Tree split 6 metres up to 3 co-dominants though which may indicate the split and stress fractures Sent from my iPhone using Arbtalk

Any expansion on your thoughts Tony in light of the stump photo? Sent from my iPhone using Arbtalk

For the record there have been no excavations in that area within 10 years or fires etc. Sent from my iPhone using Arbtalk

As promised. The guide bar is 36". Sent from my iPhone using Arbtalk

Thanks for your relies guys. Fungal infection was my suspicion and I felled her. I'll post photos of the stump which was radially segmented into three splits. Quite scary on close inspection but only apparent 2 M from base and to ground level. Definite case for take down. Sent from my iPhone using Arbtalk

Hi All. This is a 70-cm DBH Copper Beech with cambium damage on one side near base and roots. No recent excavation or mechanical damage. Wood lice present. Damage shown has been compartmentalised. Tree very close to property with no real lean (well balanced). Take down, prune or leave? Customer is erring on take down. Sent from my iPhone using Arbtalk

Thumbs up from me after eight years on a timberwolf Sent from my iPhone using Arbtalk

http://www.cobranet.de/en/pdf/cobra_us_brochure.pdf Sent from my iPhone using Arbtalk

Any takes on using the more flexible cobra (I think it's called) system allowing more flexibility than bracing which I'm not keen on for various reasons. The ridge of bark below the crotch gives me some reassurance that it's not truly incurred to base of stem. Building works and a build up of soil at base is a worry. Sent from my iPhone using Arbtalk