unknown diseased tree in vancouver

Discussion in 'Plants: Identification' started by Joseph Lin, Sep 30, 2011.

  1. Joseph Lin

    Joseph Lin Active Member 10 Years

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    I found these unknown diseased tree on the east side of Scotia Street, between E 7Ave & 6 Ave., Vancouver, beside an old Brewery Creek Factory under recontruction on Sept. 29, 2011. I copied one of these trees in Spring from Google street view.
     

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    Joseph Lin, Sep 30, 2011
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  2. Ron B

    Ron B Paragon of Plants 10 Years

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    Re: vancouver tree

    Callery pear.
     
    Ron B, Oct 1, 2011
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  3. Joseph Lin

    Joseph Lin Active Member 10 Years

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    Re: vancouver tree

    What kind of infection under its leaves?
     

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    Joseph Lin, Oct 1, 2011
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  4. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    Re: vancouver tree

    Rust disease of some sort, possibly a Gymnosporangium species.

    Callery Pears are invasive weed trees, so no loss if it dies.
     
    Michael F, Oct 1, 2011
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  5. Ron B

    Ron B Paragon of Plants 10 Years

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    Re: vancouver tree

    Over planted in this region, to be sure, but not seen making invasive thickets to the extent it does in the eastern US.
     
    Ron B, Oct 1, 2011
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