Answer by Butterfly1108 at 1:55 PM on Jul. 8, 2011
Blackspot, "Diplocarpon rosae", is a nasty fungus that manifests itself on rose bushes as black spots on leaves progressing to black spots fringed with yellow rings on both sides of the leaves. As they develop the spots enlarge. Eventually, as the disease spreads, the entire leaves will go from green to yellow and then drop to the ground. With time the entire rose bush may become defoliated. Leaves less than two weeks old are the most susceptible to this disease.
Answer by tasches at 5:01 PM on Jul. 8, 2011
Answer by tasches at 5:02 PM on Jul. 8, 2011
Answer by aj23 at 12:51 AM on Jul. 9, 2011
Answer by elasmimi at 10:24 AM on Jul. 9, 2011
Answer by ilovemyboys84 at 1:53 PM on Jul. 10, 2011
Answer by elijahsmama09 at 8:26 PM on Jul. 10, 2011
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