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  • Tree disease identification help

    Can anyone tell me what these red lumps are on this sycamore? I know this is a bonsai but its 100foot mother gets the same problem. They are quite raised and hard. The plant seems to live with them every year and it doesn't affect its health but they are disfiguring.



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    Last edited by Bill HH; 27-05-2014, 07:29 AM.
    photo album of my garden in my profile http://www.growfruitandveg.co.uk/gra...my+garden.html

  • #2
    Are they not eggs from a bug of some kind I remember something looking like this from being a kid


    Sent from my iPhone using Grow Your Own Forum

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    • #3
      I thought that but the are vegatitive (is that a word?) they wont rub off and never hatch or change. More of a fungus I think.
      photo album of my garden in my profile http://www.growfruitandveg.co.uk/gra...my+garden.html

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      • #4
        Are they gall mites?
        http://www.woodlands.co.uk/blog/tree...tion/sycamore/

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        • #5
          What Scarlet said Bill
          He who smiles in the face of adversity,has already decided who to blame

          Artificial intelligence is no match for natural stupidity

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          • #6
            Are you hoping its

            a) terminal;
            b) dangerous;
            c) threatening other species;
            d) any thing else to cause its demise.................

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            • #7
              I'm sure he is

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              • #8
                Yes it looks like its gall mites

                VC I am hoping its terminal in the mother tree but not on the bonsai

                The next question is how do I get rid of it on the bonsai. Pick the affected leaves off would be a start I spose.
                photo album of my garden in my profile http://www.growfruitandveg.co.uk/gra...my+garden.html

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                • #9
                  Gall mite
                  Q
                  Are sycamore galls worth
                  worrying about?
                  A
                  No. This tiny mite (Eriophyes macrorhynchus) affects sycamores and hedgerow maples, producing
                  masses of tiny pinhead-sized raised areas. These can be reddish or yellow, and occur from spring
                  until leaf fall. There is no chemical control. However,picking off and burning, burying or binning affected leaves may limit attacks the following year
                  Taken from .... http://www.which.co.uk/documents/pdf...ems-153613.pdf
                  He who smiles in the face of adversity,has already decided who to blame

                  Artificial intelligence is no match for natural stupidity

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                  • #10
                    I suppose you need to make sure you burn all the fallen leaves in the Autumn????

                    ..not sure if composting them might do it though????
                    "Nicos, Queen of Gooooogle" and... GYO's own Miss Marple

                    Location....Normandy France

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                    • #11
                      All I can say is it galls me to have them on my bonsai.
                      photo album of my garden in my profile http://www.growfruitandveg.co.uk/gra...my+garden.html

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                      • #12
                        My conker tree has the leaf mining moth that makes the leaves brown in August. I try to pick up as much of the leaves as possible and burn them - believe me it's a huge job! We did see a huge improvement on the leaves the following year. I've also read that you can collect, bag up and seal and not open them for a year - this may work for you, if you break the cycle and reduce the numbers it all helps.

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