Best Knockout Rose Fungicide

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This topic has 1 reply, 2 voices, and was last updated 7 years, 6 months ago by Eric Vinje.

fungicide for knockout roses

Created by Lori Carroll on November 16, 2015 at 12:09 pm

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

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November 18, 2015 at 9:25 am #184167

Eric Vinje
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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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