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Thread: Something is killing my sugar maples. Any ideas?

  1. #1
    Join Date
    Jan 2010
    Edinboro, PA

    Default Something is killing my sugar maples. Any ideas?

    I am a backyard boiler that makes about 7 gallons a year. In the past two years about 1/3rd of my 10 maple trees in the yard have developed this malady (see photos). Large chunks of bark have just dropped off, typically at the base-root of the tree but then also further up the tree. They look absolutely dead at that part of the tree. I have asked my forester and Gerlach’s landscaping if they’ve ever seen this before and they said no. I didn’t tap last year thinking I didn’t want to stress the trees further . Any ideas? IMG_7083.jpgIMG_7080.jpgIMG_7081.jpg
    50 buckets in the back yard
    2 x 4 Leader Evaporator (used since 1973...love that English tin)
    Make 5-7 gallons/year just for gifts
    Best way to usher in Spring !

  2. #2
    Join Date
    May 2009
    UVM Proctor Maple Research Center, Underhill Ctr, VT


    It is exceedingly hard to diagnose issues without seeing it first-hand or having a conversation about it. Without any other photos or description, my two guesses would be:

    1. Lightning strike on several trees in one area followed by secondary infection of Armillaria shoe-string rot, OR
    2. Eutypella canker, perhaps with a secondary infection of Armillaria or some other fungus.

    Might also be something like sapstreak disease. As I said...hard to tell without seeing it up close.
    Dr. Tim Perkins
    UVM Proctor Maple Research Ctr

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