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Top Questions About Japanese Maple Trees

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Questions About Japanese Maple Trees

  • Answered by
    Heather on
    July 7, 2012
    Certified Expert
    A.

    You need to determine if it is alive. This article will help:
    https://www.gardeningknowhow.com/plant-problems/environmental/how-to-tell-if-a-plant-is-dead-and-how-to-recover-an-almost-dead-plant.htm

    If the tree's branches are still pliant and it is alive, there are several things that could be wrong with it that could be causing this problem. It could be pests, a fungus, watering issues or a problem with the roots. Without being able to examine the tree, I am not able to pinpoint the exact cause.

    But, if you treat the plant with a pesticide and a fungicide (I recommend neem oil as it is both) and make sure the plant is properly watered and that there is not any root damage, then that should cover the majority of things that may be affecting the plant.

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  • Answered by
    Nikki on
    July 5, 2012
    Certified Expert
    A.

    While it is really dependent on the type of bug you are seeing, it may help to treat the tree with neem oil on a weekly basis for about a month. This should take care of whatever insect pest your tree has as well as any fungal issues that may pop up too.

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  • Answered by
    Nikki on
    July 16, 2012
    Certified Expert
    A.

    Most thrive in full sun, though some prefer open shade or part sun and shade. Mulching will help insulate the roots. Also, you should be watering deeply twice a week, or daily for a container-grown tree.

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  • Answered by
    Heather on
    August 16, 2012
    Certified Expert
    A.

    It may need water. Much of the country has experienced low rainfall and if this true of your area, then all you plants likely need at least an occasional good long drink.

    It may also be a fungus, though you normally see spotted leaves and yellowing along with the browning if it is a fungus. If you suspect a fungus, treating the tree with a fungicide will help clear it up.

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  • Answered by
    Nikki on
    August 23, 2012
    Certified Expert
    A.

    Filling in the hole can cause further damage as it traps moisture and disease. You can treat them with an insecticide and a fungicide (neem oil is nice because it is both) and let them heal over naturally. It is usually better to let it heal itself.

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  • Answered by
    Heather on
    September 9, 2012
    Certified Expert
    A.

    This article will help you with that:
    http://www.lunarorganics.com/pruning_moon_gardening.html

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  • Answered by
    Heather on
    September 14, 2012
    Certified Expert
    A.

    The pale green fungus is lichen and is not harmful to the trees. Many people like the way lichen looks and are fine with it, but others find it unsightly. This article will help you with the lichen:
    https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm

    The other issues sound like you make have a canker disease. There are several kinds and diagnosing trees can be difficult without a physical examination. This article will explain more about cankers:
    https://www.gardeningknowhow.com/ornamental/trees/tgen/cankers-on-trees.htm

    But, I would also recommend contacting your local extension office to see if they can send someone to help identify the exact type of canker disease or if they can recommend a local tree specialist that can help you.

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