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Thread: Birch in Trouble

  1. #9
    Illinois droseraguy's Avatar
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    I think you hit it right on the head Finch, Bronze Birch Bore. Typically the only way to stop them is by painting a band of Malathion around the trunk in the spring every year. It then travels through the vascular system and keeps the bore from wreaking total havok. There may be something newer that works like Merit but always check your labels of better yet call in a pro. Trees are just like CP's, you don't know exactly what will work for you until you kill a few !
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  2. #10

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    Definately sounds like the borer after a little background reading. Here is the leaf if you want to confirm the species:



    Guess we lost this one guys. Thanks everyone for your input,

    Zac
    "You can never underestimate the stupidity of the general public" -Scott Adams-

  3. #11
    Whats it to ya? Finch's Avatar
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    Yup, European white birch, one of THE most succeptable to this native pest as it has no resistance.

    As a replacement, if you are looking for another birch, plant native, as our natives are more resistandt.

    Plant River birch. It is the only birch completely resistant to borers

    I reccomend the superior clone 'heritage'

    Read this link here - here is a quote from it "The three most common birch species grown in urban environments in America are paper birch, European white birch and the heat-tolerant river birch. River Birch, or Betula nigra, seems to be the only birch truly adapted to the hardships of urban conditions. Especially the Heritage™ or "Cully" cultivar. This tree stands up to heat and a deadly birch borer which can become a real problem with other birch species planted under city conditions and subject to pruning and other intrusive forms of landscape management."


    River Birch 'Heritage' - The 2002 Urban Tree of the Year
    that makes no logic

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