Q & A

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  • November 16, 2015 at 12:09 pm #184093
    Lori Carroll
    Guest

    Hi I read online that knockout roses should get an application of powdered fungicide before winter. I am in zone 5 Chicago IL. If so what the best fungicide to use? Thank you for your time. LC

    November 18, 2015 at 9:25 am #184167
    Eric Vinje
    Keymaster

    Lori –

    I would recommend the Sulfur Plant Fungicide. It can be applied as a powder or spray, is inexpensive and is registered for use on roses. Here’s a link:

    https://www.planetnatural.com/product/sulfur-plant-fungicide/.

    Hope this helps!

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