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knobbly apple tree joints

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  • knobbly apple tree joints

    Star of Devon on M106, 3 years old. At every branch-twig joint there is a pea-sized knob, with the new shoot growing out of it. Other trees around it are not affected.Difficult to get camera to focus, but images attached. What are these?Click image for larger version

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ID:	2405603Click image for larger version

Name:	knob.jpg
Views:	1
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ID:	2405602

  • #2
    Possibly apple burr knot

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    • #3
      Probably some damage either physical or caused by disease, which the tree has grown round, so you end up with a mis-shapen section

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