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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comI have rose bushes that are flowering but have black spots on the leaves.
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[1] https://www.gardeningknowhow.com/ornamental/flowers/roses/black-spot-roses.htm: https://www.gardeningknowhow.com/ornamental/flowers/roses/black-spot-roses.htm
[2] http://www.rosemania.com: http://www.rosemania.com
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1 Comment To "I have black spots on my rose bush leaves"
#1 Comment By roseman On 04/29/2014 @ 12:33 am
That is likely what is known as Black Spot Fungus. Here is a link to an article I wrote about it for you: https://www.gardeningknowhow.com/ornamental/flowers/roses/black-spot-roses.htm [1]
The Mancozeb product is available through http://www.rosemania.com [2] as well as the Honor Guard product. Green Cure, an Earth Friendly fungicide, is available at a website called Planet Natural.