treeseer
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Everything posted by treeseer
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Quercus phellos, 'willow' oak, from leaf shape. Way too popular in SE US. Specs for regenerative pruning were readily accepted; 3 years later trees are responding very well. (I stopped calling it 'retrenchment pruning' because persistent association with intentional wounding distracts people from the primary purpose; rejuvenating tree growth.
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This was 1 0f 38 squeezed. 35 reduced and retained. This sure is a quiet place!
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Natural retrenchment; vigorous sprout arising below declining top, top reduced 10%, sustainable solution.
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an array of natural retrenchment
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Here's a 'before', a leaning oak with basal issues that is shedding its top. The 'inner crown' is visible below the declining top. Pruning to condense the crown for treee health and stability involves cuts < 10 cm. Cuts larger than that to benefit fung and insects would seem to conflict with BS3998, and ZTV.
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Here's a 1-hour webinar on a tree-centered approach to crown regeneration. No rips or tears; wound size is minimised. In the US, extra saproxylic habitat is rarely part of the objective, so the specs maximise other tree contributions. I'm open to comments or corrections. https://meeting.psu.edu/p94y60hp9zi/
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A few early images here show natural retrenchment; many others show human-induced crown regeneration. Are you interested in solely the former? https://meeting.psu.edu/p94y60hp9zi/ You're welcome to anything in there.
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Fungus is feeding on organic matter; may not be a pest. The columns of reaction wood make that area stronger than a 'normal' tree.
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This time of year, foliar conditions may be a non-issue. Trees made their annual harvest of sunlight already.
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Travelling over RPA's -temporary roadways?
treeseer replied to benedmonds's topic in Tree health care
Here's a study that used only a 13,000# machine. A proper bridge seems necessary for your project. The Use of Surface Treatments for the Prevention of Soil Compaction During Site Construction https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CB0QFjAAahUKEwiX5bqS55TIAhXGnYAKHYkdCWk&url=http%3A%2F%2Fjoa.isa-arbor.com%2Frequest.asp%3FJournalID%3D1%26ArticleID%3D2629%26Type%3D2&usg=AFQjCNF-y33AmHsysVOLW18bZokvtp0xIQ&sig2=4_P1olZxPHbNIgHG5mqLLQ&bvm=bv.103388427,d.eXY -
Whose land are they on?
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Assessing the structural condition of a beech
treeseer replied to jacquemontii's topic in Tree health care
20% reduction, wang a bit of cobra bracing up and jobs a good un" good post; if the 20% is specced to reduce sprawl and strain, and the bracing could be steel, i agree. -
Lots of healthy looking tissue there but you could poke and probe a bit to see what is inside.
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Managing Trees with Decay & Dysfunction
treeseer replied to David Humphries's topic in Tree health care
Sounds like a good idea! I wonder if the cavity habitat could be repurposed somehow too. -
Managing Trees with Decay & Dysfunction
treeseer replied to David Humphries's topic in Tree health care
What was done with the 'debris'? -
Frustrating indeed; room full of marshmallow, that's a good one! In the US I heard a researcher tell a room full of 400 arborists: "You wouldn't want to keep a tree with Inonotus, would ya? Huh?" What makes it all the worse is, that bloke's company is the one that writes the A300 standards, and the BMPs! The lunatics are running the asylum, and with an iron fist.
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Sad loss. Cabling material costs might have been <50 pounds.
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Scrape off the black stuff and see where it's coming from.
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Andy it's very important to move away all the rocks and dirt and whatever that blocks your view of the first root growing off the trunk. Covering the trunk can cause a lot of problems. It needs to be kept dry.
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Mulch looks like a cover layer of pinestraw over woodchip. Agree w Grif and Gano. The other looks (mostly?) sapro; the roots on that side took a major hit from road activities. Ever so slight lean, if at all. The crown draws its own line to cut back to--can you see it?
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3 more; gnarly stem cankers, base, and south view showing need for reduction.
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A veteran Liquidambar with, apparently, 3 different fungal associates. Might be manageable by 4-6 m reduction, and fit into the midstory.
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Well if it is not imbibed I do not think it will kill the liver. The patent is here Patent WO2013175467A1 - Synergistic fungicidal composition - Google Patents Glynn mentioned it in his SIR talk--Systemic Induced Resistance. Toxicity relative to Armillatox; I do not know. Effectiveness--seems to be there, for some cases.
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Does 'bark peel' mean cambial dieback below the cut? I've seen few trees that could not handle a judicious 10%-12% overall reduction. Beneficial for most large trees.
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Managing Trees with Decay & Dysfunction
treeseer replied to David Humphries's topic in Tree health care
Nice work, assisting the associates, ?s: Were the conks intact? I'm still only 93.8% sure of the Merip ID on the white oak in the other thread. I'm used to seeing it more 'fan'shaped' per Schwarze. " that there was very little (almost no) decay in the lateral structural roots which suggests the presence of the Merip is perhaps more to do with the recycling of the older unneeded root system under the trunk." Exactly what Schwarze said, though this not meshing well with his research showing that Merip preferentially degrades sapwood more than heartwood. Closed canopies are good!
