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Top Questions About Cottonwood Trees

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Questions About Cottonwood Trees

  • Answered by
    Nikki on
    March 8, 2011
    Certified Expert
    A.

    Unless the tree has been fully girdled (bark removed all the way around the tree), it is best to let the wound stay open. Applying anything on the wound can actually trap bacteria in the wound and cause more damage than good. This article will explain more and have some tips for cleaning the wound:
    https://www.gardeningknowhow.com/ornamental/trees/tgen/repairing-tree-bark-damage.htm

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  • Answered by
    Nikki on
    August 4, 2011
    Certified Expert
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  • Answered by
    Nikki on
    August 12, 2011
    Certified Expert
    A.

    Undiluted Round Up will help kill the roots. You will need to wound the roots (normally, people cut the suckers down and use those wounds) and then paint the undiluted Round Up on the wounds. The bigger or more wounds you paint, the better.The roots will suck the Round Up in and it will kill them. You may have to repeat the process a few times to fully kill the roots if the root system is still strong.

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  • Answered by
    Nikki on
    September 2, 2011
    Certified Expert
  • Answered by
    Heather on
    June 4, 2012
    Certified Expert
    A.

    It is likely winter damage. As long as the tree is not girdled (the bark broken around the circumference of the trunk, then you should let it heal on its own. As a precaution, you may want to treat the wound with a fungicide to ward off disease, but do not seal the wound, as this can trap disease in the wound.

    Young trees have thin bark and winter sun can cause it to crack. You may want to consider wrapping the tree's trunk in tree paper for the next few winters, to prevent further cracking.

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  • Answered by
    shelley on
    March 20, 2015
    Certified Expert
    A.

    This small caterpillar is a leafroller.

    Here is an article that will give you guidelines on how to deal with leafrollers:
    https://www.gardeningknowhow.com/plant-problems/pests/insects/leafroller-damage-control.htm

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  • Answered by
    Downtoearthdigs on
    June 7, 2015
    A.

    I would use your garden hose with a good spray nozzle to force the fluff out of the lawn.

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