Recent content by gergwebber

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    Help Identifying Crab Apple Disease ...

    I do not see fire blight, yet anyway. It looks more like a rust or a toxicity of some sort. The only "control" for fire blight is to cut it out, and keep the plant healthy as possible. It could spread to near by trees, almost all Rosacea are susceptible.
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    Failed Air Layer - Still Time to Succeed?

    I had one fail on me, and I decided to let it recover and try again next year. Unfortunately, the callous did not bridge well, and a month after the failure, the top died :( In my case, I should have re-wounded, re-applied hormone and continued on, as this has worked for me in the past. Now I...
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    Tree / Bonsai drawings / sketches

    This is a rather poor example of a tree sketch, but it is fun for another reason. It is a relatively close sketch of a red bud tree existing in a landscape design I am working on. I sketched it and through photo shop, created a sketch up component that I could use in a 3d model of the site. Now...
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    Interior Live Oak, Quercus wislizenii, first styling

    could you quickly describe the collection? Time of year, amount of roots, after care etc? thanks! great looking tree!
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    The quotes thread

    Some good Terry Pratchett quotes: “Wisdom comes from experience. Experience is often a result of lack of wisdom.” “Steal five dollars and you were a petty thief. Steal thousands of dollars and you were either a government or a hero.” ~Going Postal “Just erotic. Nothing kinky. It's the...
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    Yamadori, Class of 2014

    Could be Calocedrus decurrens? Incense Cedar? Though it is called Cedar, it is actually more related to Junipers and Cypress. Its native to the West, but I did not know it grew that far north.
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    Patagonian native tree: Araucaria

    We looked at one in my taxonomy class last week! It seems A. aurucana does well in Davis too! This one is by an older building and may be around 50 years, but has yet to take the umbrella shape yet. They may or may not react similar to Aurcaria heterophylla, the Norfolk Island Pine? not sure...
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    Japanese Maple- Who says some can't be grown in full sun!

    Here in the central valley they prefer filtered shade in the afternoon. That said, the ones in full sun do well until mid july-august. Its not that they can't take the sun, its just that a good 25 % of the upper canopy gets fried. I think that regardless of climate or zone, they are a best...
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    Cloning experiment

    I learned recently that cuttings need calcium in the substrate to achieve root elongation. The primary (if not only) source for Ca in inert media comes from the cuttings themselves. As a result, too few cuttings in a flat will create a Ca deficit that leads to poor rooting. Basically, the Ca is...
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    Specie Identification Help Please

    Haha, this is a good one. I thought it looked opposite too. Are you sure it does not flower? Or has it just not flowered yet? I say this because it looks like the leaves have stipules, which is a major id key for Rosaceae. Could be a prunus. There are cherries with that leaf texture i think? And...
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    Specie Identification Help Please

    Cool tree. Looks like Cornus to me. Some sort of dogwood, anyway.
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    How to rid of Caterpillars?

    I totally agree with the above. I cannot stand the whole "I saw some issues and got this stuff and sprayed, and that thing that was wrong went away!" What you spray and what you are controlling are the key. This lets you use the least toxic method on the market. Often it is a matter of culture...
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    Burr oak/ just starting

    I would keep the lower two branches pinched back and low, and let one go to about ten feet. Re-pot next spring, and keep the sacrifice stripped of low foliage to prevent shading out the other low branches. Not sure how well the macrocarpa foliage will reduce, so find some elms or flowering...
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    acer advise is needed

    The other great side of this is that a large patio tree will need at least two major pruning sessions a year, providing great insight into branch architecture and pruning response of maples. Repetition is the key to getting good at pruning, and with a 6' tree, you get to make twenty times the...
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    Shohin crabapple with fruit

    Great tree. Looks like the branches have really come along the last two years, can you elaborate? Did you clip and grow, wire, both? Are you letting small sacrifice branches grow out each year and reducing in spring? Perhaps a shot of the tree this winter would show me what I am asking? thanks
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