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Top Questions About Shrub Problems

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Questions About Shrub Problems

  • Answered by
    Heather on
    May 22, 2011
    Certified Expert
    A.

    How you approach this really depends on what kind of shrubs they are, but you can prune back most shrubs by up to 1/3 per year without harming them.

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  • Answered by
    Nikki on
    July 19, 2011
    Certified Expert
    A.

    That is powdery mildew. These articles will help:
    https://www.gardeningknowhow.com/problems/get-the-cure-for-powdery-mildew.htm
    https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm

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  • Answered by
    sjgranny on
    August 6, 2011
    A.

    The property next door to me is a rental property. Over the years there have been renters who leave their vehicle idling (the driverway for the property runs along our fence line, and over the years I have had damage to azaleas, dogwood tree and pine tree from exhaust. My conclusion is plants do not like carbon monoxide.

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  • Answered by
    Susan75023 on
    August 5, 2011
    A.

    I could find little information but one source states that exhaust makes it impossible for plants to photosynthesize, (convert light to energy.). I would hate to confront him only to find out the plants have a totally different problem. HOpe you find a better answer.............

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  • Answered by
    Nikki on
    August 13, 2011
    Certified Expert
    A.

    Roundup is the normal herbicide used for this. Apply liberally and at full strength. For root stumps producing suckers, cut the suckers off and apply Roundup to the open wounds on the stump.

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  • Answered by
    Nikki on
    September 3, 2011
    Certified Expert
    A.

    I would give neem oil a try. It is safe to use but will take care of most insect pests, leaving the beneficial ones alone. It is also a great fungicide, should any after effects from the insects cause any additional problems. Here is more info: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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  • Answered by
    Nikki on
    September 22, 2011
    Certified Expert
    A.

    I think it may be powdery mildew. These articles will help you:
    https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm
    https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm

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

    You're most likely dealing with sucker growth. Cut the suckers and paint the fresh cuts with undiluted Round-up. This will get into the remaining root system and kill the roots. It may take a month or so, but it will work. Perhaps this article may be of some help to you as well: https://www.gardeningknowhow.com/ornamental/trees/tgen/how-to-kill-a-tree-killing-trees-in-your-garden.htm

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