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Top Questions About Weed Control

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Questions About Weed Control

  • Answered by
    drtreelove on
    March 6, 2019
    A.

    Preen is a brand of weed control products. There are different formulations. If you are referring to Preen Garden Weed Preventer, it is for control of broadleaf weeds and not grasses. It will not be effective for the Johnson grass.

    This article outlines some strategy and products:
    https://www.gardeningknowhow.com/plant-problems/weeds/controlling-johnson-grass.htm

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  • Answered by
    Downtoearthdigs on
    March 6, 2019
    A.

    A herbicide alone is not generally enough to control Johnson Grass.
    Preen does list Johnson Grass as one of the targeted weeds.
    Apply according to the packaging.

    https://www.gardeningknowhow.com/plant-problems/weeds/controlling-johnson-grass.htm

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