Cleveland Pear problem

Discussion in 'HortForum' started by spenny, Oct 28, 2010.

  1. spenny

    spenny Member

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    Does anyone know what this is growing on my trees
     

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    spenny, Oct 28, 2010
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  2. Daniel Mosquin

    Daniel Mosquin Paragon of Plants UBC Botanical Garden Forums Administrator Forums Moderator 10 Years

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    I'd say at least 3 different species of lichen. The lichens aren't a problem, though the conditions which allow them grow (too slow sloughing off of the outer bark layers from the tree) might be an issue. How old is the pear tree?
     
    Daniel Mosquin, Oct 28, 2010
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  3. spenny

    spenny Member

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    They have been in the ground for 4 or 5 years
     
    spenny, Oct 29, 2010
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