Maple Tree Desease

Discussion in 'Maples' started by jerry, Oct 30, 2004.

  1. jerry

    jerry Member

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    Location:
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    I Live In Toronto In The East End Of The City. All Of The Maple Trees In My Vicinity Have Quarter Sizes Black Spots On The Leaves. I Would Really Appreciate If Someone Could Tell Me What Is Wrong With These Trees.many Thanks.
    Jerry
     
  2. Ron B

    Ron B Paragon of Plants 10 Years

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    Could be tar spot.
     
  3. F T LeBlanc

    F T LeBlanc Member

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    Location:
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    Jerry

    We have the same problem with our maple trees in Moncton N.B.
    We just noticed the black spots on the leaves today, most of the leaves are affected
    Have you found the answer to your problem in Toronto
    Francis
     
  4. Rima

    Rima Active Member

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    Some kind of fungus... too much rain this year?
     
  5. Laurie

    Laurie Active Member Maple Society 10 Years

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    Francis, could you post a photograph of the affected leaves? As Ron mentioned, it could be tar spot, which is not a threat to the health of the tree.
     
  6. Eyeris

    Eyeris Active Member

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    Re: Maple Tree Desease *added picture

    A little late but none the less. I had this problem this past fall...and I'm close to the Toronto area. Does anyone know if it is harmful? Or what can/ should be done?
    Thank you
    E
     

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  7. Manda

    Manda Member

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    I found this info on the black spots found on Maple trees.
    It is from The Plant Disease Diagnostic Clinic at Cornell University
    http://plantclinic.cornell.edu/FactSheets/tarspot/tarspots.htm

     
    Last edited by a moderator: Sep 26, 2007

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