Fungus
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Everything posted by Fungus
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Sloth, No, air pollution does not inhibit, but stimulates pathogens. Acidification and nitrification creates easier access for the spores to invade branches and leaves, that are less protected by the tree's defensive system of which fungicides provided by mycorrhizal symbionts are an essential part.
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And that's where the microscope has to give the definite answer, because finding the necrotrophic parasitic G. lipsiense on oak is very exceptional and this type of extensive decay in a (living) tree is typical for the biotrophic parasitic G. australe.
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1. You're trying to convince your future customers (and me), that the U.K. is the perfect place for truffle farming and a good investment for fortune seekers by telling them that it's a thriving industry in parts of Europe where the conditions are optimal ? I would rather go to a betting shop and put my money on a horse instead . 2. That's where you (again) show your lack of knowledge on the subject. Ectomycorrhizal ascomycete (and basidiomycete) truffles are part of all forest and woodland (tree species specific) ecosystems. Your problem is, that most species are not suited for consumption (and dispersion) by the human species . By the way, with what other than commercial intentions did you "invade" and reactivate this thread, that has been "sleeping" since 07-02-2010, or were you just trying to save the advertising charges for a proper advert on this website ?
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1. So your advice is : don't invest in it on a larger scale and do not expect (short term) harvesting and/or profit ? 2. You obviously have no knowledge of the dynamics and life cycles of tree species specific ecosystems, their soil food webs and their ectomycorrhizal tree species specific truffle species and of how truffles disperse their spores.
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I would expect this to be the other way around, as the effect of air pollution (exhaust fumes) on the condition of the twigs or branches and the foliage is at its highest level above hard surfaces such as (asphalt) roads with intense traffic.
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Thomas, You'd better visit The Netherlands then, we have several beeches with trunk wounds from shell fragments of grenades fired during WW II with H. erinaceus fruiting from them.
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Does my oak tree have a disease?
Fungus replied to K-AngeL's question in Homeowners Tree Advice Forum
Thompson, ... only true, as long as he or she doesn't look in the mirror . -
Ben, Good for you , but not that good for the beech .
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A former collegue's daughter was called Morach by mistake, because the parents thought it was jewish or arabian, but a female friend of ours, who is married to a Scottsman (and lives in Southampton), who had a sister called Morag, told us how the name should be spelled.
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I do, but I won't share it with you . By the way, our daughter has a traditional Scottish name : Morag.
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If you go down to the woods today.........
Fungus replied to David Humphries's topic in Picture Forum
1. Polyporus varius ? 2. Body language of bark and cambium necrosis typical of Fistulina on (the trunk base of) oak . -
David, My wife is called Nelly .
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David, The bolete probably is one of the varieties of Xerocomus chrysenteron s.l. And why can't you accept the whims of mother nature without knowing a cause for it ?
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Tis the season to see Fungi, fa la la la la....
Fungus replied to David Humphries's topic in Fungi Pictures
I agree on the Lophodermium (black spots on the needles second to the right) and being the only pathogen on pine, it probably is L. seditiosum. -
Tom, Where in The Netherlands is this happening than (naam en rugnummers a.u.b. ) ? The photo I started the thread with was taken yesterday underneath a 120 year old Platanus in a (far too) small private garden in the centre of an old city crowded with people visiting restaurants and bars passing and even sitting underneath the tree. The branches in the photo were hanging from the railings surrounding the garden. Outside the garden, there were a lot of small and a few wrist thick branches laying on the pavement, which was just the weekend's "harvest".
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This is a natural oddity or phenomenon without obvious cause. And I think the bolete is associated with oak.
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1. How about a money return guarantee if a customer has no harvest within ten to twenty years ? 2. Obviously ? Could you explain how commercial production in well managed orchards ensures the stocks of naturally occuring truffles in forests and woodlands. By letting wild boars, red deer or roe into the orchards or do you depend on truffle flies to locate the truffles and disperse the spores ?
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David, Sure, but comparing the costs of climbers and mobile platforms with the use of the high altitude camera, in The Netherlands some cities with thousands of trees in lanes and on road sides meanwhile have decided on the cheaper and less time consuming one man driven and handled buggy with camera and monitor. Besides, we don't have that number of professional climbers to do the monitoring anyway. And how many trees yearly need monitoring and inspection in the Royal Parks ?
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Panic fruiting because of decomposing the base of the tree, the buttresses and (part of) the root plate making the tree even more vulnerable for windthrow.
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How do they monitor Massaria on branches in the crown ? In The Netherlands we have recently started to use a high altitude camera mounted on a buggy for inspection.
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From the prolific (panic) fruiting (triggered by airspading) of this biotrophic parasite, one can derive the trunk base and buttresses probably will be decayed (simultaneous white rot) to a great extend, making the tree vulnerable for windthrow by a storm "hitting" on the tree on the affected side.
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Paul, In The Netherlands, we have lots of Platanus colonized by Massaria and especially older trees in urban environments, on roadsides or in lanes have to be monitored regularely because of the risk of thick branches breaking off.
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Documentation of bark necrosis and throwing of bark in combination with cankers of the base of clusters of died twigs caused by Splanchnonema (= Massaria) platani on fallen branches of Platanus. ---
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Today, while visiting the very old inner city of Groenlo (Grolsch beer) with some local tree "lovers", I first noticed signs of an Armillaria infection on the other side of this privately owned "red" Acer standing beside a busy road and then found prolific fruitings of K. deusta starting from ground level and forming teleomorphs breaking through the bark up to 5 metres on the opposite side of the trunk. Tomorrow, the owners will be warned and advised to have the tree felled as soon as possible. ---
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David, It's very rare on Acer and yes, it's a first for me.
