Roses
Q.

Rose Black Spot

Anonymous added on March 12, 2014 | Answered

What spray mixture is most effective once black spot begins appearing on rose leaves?

A.
A.Answers to this queston: Add Answer
Nikki
Certified GKH Gardening Expert
Answered on March 12, 2014

A series of spray applications of a fungicide called Mancozeb will usually stop black spot in its tracks. This article should help as well: https://www.gardeningknowhow.com/ornamental/flowers/roses/black-spot-roses.htm

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