Roses - Knowledgebase Question

Palm Bay, Fl
Question by emoran007
August 30, 2008
my leaves keep getting black spots on them and the bottom of the rose bush is getting thin. What should I do?

Answer from NGA
August 30, 2008


Black spot is a nagging disease of roses. The best way to manage it is with resistant varieties. Your roses seem to be especially susceptible. This will require spraying on a regular basis, perhaps every couple of weeks from spring to mid fall, depending on the weather. I suggest trying products with one of the following ingredients: tebuconazole (Bayer Advanced Disease Control), myclobutanil (Spectracide Immunox), propiconazole (Banner and several others).

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