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black spot, etc. on roses

Ten rose bushes ranging from hybrids to standard. Fungus, rust, black spot–best method and product for treatment and prevention?


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1 Comment To "black spot, etc. on roses"

#1 Comment By roseman On 06/10/2012 @ 7:18 pm

The best fungicide I have found to stop black spot in its tracks is called Mancozeb. I get it from http://www.rosemania.com [1] . A bottle of it lasts a long time so the price is not that bad. I use it if I have black spot get started and cannot gain control. As my main fungicide I use a product called Green Cure. I have zero problems with any funguses if I keep the rose sprayed with it at no more than 14 day intervals. Two scoops of it per gallon. A little scoop comes in the tub of product and you use the big end of the scoop.


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[1] http://www.rosemania.com: http://www.rosemania.com

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