Tom Joye
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Everything posted by Tom Joye
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Gerrit, usually you're more determined But I understand your point. Would you agree if I rephrase it as 'there's a big chance this is ...' or 'there are clues pointing in the direction of ...' Hama, I actually never considered pfeiferi, so I went looking for some older pictures of the same tree (found out it was already felled 2.5 years ago instead of 1.5, time flies). The older fruiting bodies on the stem base actually ressemble pfeiferi very much. It's impossible for me to check this now, but when I get near this tree, will try to check. As you can see in the pictures, there was no longer a ring of sound wood, the tree was only standing on separate reaction wood root flares. When this was discovered (these trees are unfortunately not really under strict VTA-control), only days before a major event in this park, the tree was felled. As you can see, it even failed before the saw got through.
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Tis the season to see Fungi, fa la la la la....
Tom Joye replied to David Humphries's topic in Fungi Pictures
Yes David, all the same site, a park where I used to work. Lovely place! Most of my last pics in the Q&A are also the same site. Gerrit, I'm not 100% sure, but i think it was a Poplar stem -
Gerrit, no galls present and the older brackets were only on the stem base. No older brackets higher up the stem, all the FB's you see have been formed after the tree was felled. Considering: * this tree has been felled (and therfore is quite dead) 1.5 years ago * the FB's have been formed after felling of the tree and are now still active * G. australe being a biotrophic parasite --> can you still doubt this is G. applanatum?
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Gerrit, only one small fruiting body and body language suggesting (at least some) decay. The tree condition was very bad, with Fomes fomentarius in the crown.
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Tis the season to see Fungi, fa la la la la....
Tom Joye replied to David Humphries's topic in Fungi Pictures
some of the nicer finds of last weeks... * Pholliota squarrosa on beech * some monster Piptoporus betulina (more than 40 cm diameter) * geotropy in Fomes fomentarius * retracting spore layers of Fomes fomentarius on this old monolith * Phaeolus schweinitzii on Pinus sylvestris -
It have been some 'low activity' weeks on Arbtalk for me, meaning lots of pictures (and the subsequent questions) 1&2 bad picture of Pholliota spp. on beech on a old wound 6m high. Does not look like aurivella to me, but too high to be squarrosa 3&4 white slime mould? and G. applanatum 5 sterile lump of Fomes fomentarius?? 6,7&8 I'm confused about this one: looked like Grifola frondosa at first, but on beech, then tought Meripilus, but does not look right either 9&10 Meripilus on Quercus rubra? 11&12 is this fomes fomentarius going 'bananas' because of the abundance of wood to decay? It's popping out everywhere on this recently monolithed tree 13&14 what does the body language of this Acer saccharinum tell you? Looks like it's slowly sinking over it's root base --> white rot? Or is this just an old graft? 15&16 Pholliota aurivella? 17,18&19 no idea, in the root area of old beeches 20&21 lousy phone pictures of a fungus on an old Pinus nigra stump; Armillaria??
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At first, I thought these were Ganoderma australe brackets, but after talking with Gerrit and realising G. australe is a biotrophic parasite, this has to be G. applanatum (beech has been felled 1,5 years ago). untill now I always thought this kind of lumpy brackets with a thick white growth margin were australe ... I'll have to reconsider (by the way: I think Pholliota aurivella bottom left, will post more pics in another thread)
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I agree with what has been said: great piece of equipment, in the hands of a skilled person. As an illustration of the possible limitations of tomographs: a couple of months ago, we organised a tomograph workshop, felling the tree afterwards. The tomograph picked up a large crack and overrated the decay by Ganoderma (Gerrit, since I've been talking to you, I don't dare to say if it's applanatum or australe) in this Quercus rubra. Cracks can be detected by combining acoustic tomography with electrical impedance tomography, but then you need another set of sensors, more software, ...
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Gerrit, I kind of recognize this tree I spent a great time learning from you, I'm still 'digesting' all the info. Cheers, Tom
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Neville Fay told me earlier this year that he and some other authors were working on this publication, but no idea when it was going to be published. Also looking forward to it.
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If I understand the forum rules, I can't give you any names (not even of our Dutch colleagues ), but we can discuss this next week, since we're meeting 'in the flesh' And as I said before, there are situations where Massaria poses a great risk and of course those trees have to be assessed accordingly. But in my opinion, in 'everyday' arboriculture, Massaria is just one of the many aspects to assess during regular VTA's of urban trees. And if the assessor identifies a tree or branch likely to have Massaria (which can be done from the ground), he/she needs to take all the necessary steps to confirm or deny a Massaria infection. This can include the use of a high altitude camera or a climbing inspection. But I don't agree with 'standard' climbing or camera inspections of all urban plane trees every year or even every 6 months.
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David, I'm certainly not saying that we should just forget about Massaria and in high risk areas such as the Royal Parks it needs to be dealt with. But suggesting that we need to assess every urban plane tree twice a year (as is happening in the Netherlands) ... now that's what I call 'making a fuss' (with ss instead of zz, I just realised ) Cheers, Tom
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I'm not convinced Massaria is a major issue. First of all, it is not a new 'disease', it has always been around and (as many ascomycetes) it plays a role in shedding branches that are no longer functional, for example because they do not receive enough light. One may not be able to see Massaria from the ground, it is perfectly possible to identify branches with a high risk for infection and monitor these. A second point is that the branches don't snap and fall down. They tend to break on the top side of the branch and then usually swing down and remain hanging. A whole different story from the 'hazard' point of view. I get the feeling a lot of the Massaria fuzz has been started by people providing tree monitoring services and specialised equipment (such as high altitude cameras).
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The bark was stripped off to look at the extent of the damage.
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Hi all, a colleague of mine sent me these pictures of a Sophora japonica. No mycelium found. My first tought when I saw these pictures (without seeing the tree in real life) was Phytophtora sp. Could this be right? Kind regards, Tom
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Thanks Fish, will try to make one of my own! Cheers, Tom
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Nice! I always wanted to try making one, but I wonder if these bowls do not crack when they dry out. And if they do, how would you prevent that? Cheers, Tom
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Thank you for this fine thread, Gerrit. This is the kind of info I have been searching for a long time! Cheers, Tom
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Thanks Gerrit!
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Hi Gerrit, I checked this yesterday and this fungus is on a coppiced Tilia. The FB didn't change much in appearance during the last 2 weeks. Does that change the ID as Inonotus cuticularis? Cheers, Tom
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Some documentation of an Acer failure after infection by Armillaria. It failed a couple of weeks ago during a very heavy storm that passed over Belgium. It looks like there was internal crack. 2/3 of the root system failed due to extended decay. Last 4 pictures are of an uprooted tree (also Armillaria) and a still standing one (for now), both in close proximity of the first one. All trees were on a slope.
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last week I found this recently fractured Quercus rubra (during the storm which took 5 lives on the Pukkelpop festival in Belgium). On the stem base there were fruiting bodies of Ganoderma applanatum, but the fracture was 4m higher. On the broken stem I found one small FB, more spherical. Would this also be G. applanatum or maybe another Gano? I did not having a knife, so couldn't take a sample to check the 'flesh'. The fracture looks like there was a hollow (maybe a woodpecker hole).
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Thanks for the swift reply Gerrit! I don't remember what tree species the last one was on, but I will check. cheers, Tom
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Hi all, been away for a week and almost 4.000 unread posts, come on guys, give me a break ... But, I have made some interesting finds during the last week for this and other threads. Here are the ones I can't really ID: 1) a funny form of Piptoporus betulinus? 2) under a Tilia 3 & 4) a Boletus under Fagus, coloured greenish when bruised, no specific smell 5 & 6) under a Quercus rubra 7 & 8) on a veteran Tilia 9 & 10) on a Robinia 11) are the black 'sheets' the pseudoslerotial layers formed by the Kretz (the black lines on a trunk section?) 12) which mycelium could this be (don't know tree species, was in a kids 'play forest')? Does not realy resemble the Laetiporus mycelium I know 13) no idea at all!
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Tis the season to see Fungi, fa la la la la....
Tom Joye replied to David Humphries's topic in Fungi Pictures
And looking forward to it!!!
