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Nancy from Oronogo, Mo writes

I am treating my climbing rose bush with Bayer Advanced Disease Control for Roses, Flowers & Shrubs. Will it hurt the bush to also spray it with a systemic fungicide to get rid of black spot every 2 weeks?

Answer:

Bayer Advanced All-In-One Rose and Flower Care is already labeled to treat for black spot systemically and gives instructions for if the disease is present.  If you need to spray the foliage for active black spot, you can use something like the Natural Guard Neem Oil.

Answer last updated on: 03/04/2018

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