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Top Questions About Barberry Shrubs

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Questions About Barberry Shrubs

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

    Consider placing a berm in your landscape to redirect water to another area and improve drainage. These article should also help:
    https://www.gardeningknowhow.com/plant-problems/environmental/signs-of-plants-affected-by-too-much-water.htm
    https://www.gardeningknowhow.com/special/spaces/building-a-berm-how-do-i-make-a-berm.htm

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  • Answered by
    pink on
    June 12, 2011
    A.

    I have two barberry scrubs and have had them for six years, I put peat moss in my soil every year and every second year I add black dirt and peat moss, last year we had an abundance of rain and they did okay. You could also try putting bark chips around them or some kind of mulch

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

    In addition to cutting off the affected foliage, try treating the shrub with neem oil. It's an effective fungicide as well as pesticide. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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  • Answered by
    Nikki on
    April 13, 2012
    Certified Expert
    A.

    You may have come across a barberry shrub. In order to be certain, it would help to have a picture. You are welcome to post a picture of the shrub or email it to us so we can be of more help.

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  • Answered by
    Heather on
    July 28, 2012
    Certified Expert
    A.

    You should prune it either in late winter or directly after it flowers.

    If it is just a shrub, you can just prune to shape. It has no real need to be pruned for health reason. Just remove any branches that are outside the shape you want with a sharp pair of shears. If it is a hedge, then prune to retain the proper hedge form.

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  • Answered by
    Nikki on
    September 2, 2012
    Certified Expert
    A.

    Are you certain it's a pest. Depending on the symptoms, it could be a fungus attacking the shrubs, which would also explain the spreading. Treat the plants with neem oil, which should take care of both pests and fungal issues. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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  • Answered by
    AnnsGreeneHaus on
    November 1, 2013
    A.

    Although I've not seen disease on barberry plants, given the proper conditions, almost any plant can be affected by pathogens. The following link provides information on rusts on barberry: http://www.aphis.usda.gov/plant_health/plant_pest_info/barberry/

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  • Answered by
    Heather on
    November 20, 2013
    Certified Expert
    A.

    The "cocoons" are likely the bug itself. It sounds like you have either mealy bugs or wooly aphids. Here is more information about how to control both pests:
    https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm

    https://www.gardeningknowhow.com/plant-problems/pests/insects/woolly-aphid-control.htm

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