Thread: Problem with red maple

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  1. #1

    Problem with red maple

    Hi... it's been a little while since I was here, but will be reading more and more.

    I had posted about my dwarf Japanese maples in July. The lost all their leaves but came back with all new leaf buds, most of which have opened up now. I am seriously considering on moving them, based on what I've read so far, to a place where they will have morning sun, but afternoon shade partially under some large oaks in the front yard. Hopefully this will eliminate the heat problem with summertime here in Central Georgia.

    Now... my newest problem, which I have not been able to find in any of my gardening books, involves a red maple which is covered with a black mold (?) on all its leaves and the stems have, what looks like, small bumps clustered around the leaf stems that are also black.

    Could someone please advise what this may be and how to treat it?

    Help is greatly appreciated!

  2. #2
    pwk16
    Guest

    RE: Problem with red maple

    If you go to www.google.com and type in "rhytisma acerinum" and click on the image search you'll find some maple leaves with large black spots. Is this what you're seeing on your trees?

    If not, then it may be galls. Black galls on maple leaves are quite common. Just go to Google and type in "maple leaf galls" to see if you can find out what yours are.

    Leaf diseases are usually not serious unless they happen year after year after year.

  3. #3
    Oak
    Join Date
    Feb 2009
    Location
    NE Tennessee
    Posts
    108

    RE: Problem with red maple

    Sounds to me like you have:

    1 Sooty mold, a by product of honeydew produced by..
    2 Aphids, a pest that feeds on the sugars in the plant leaves. honeydew is their excrement
    3 some type of scale insect.

    Pretty common to see all of this on a tree at one time. Lots of treatment options, make sure to ID the pests first.
    "EDUCATION begins when you question something. EDUCATION occurs when you have resolved your doubts" Alex Shigo

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