"According to the University of Kentucky and Ohio State University, miticides are ineffective with eriophyid mites, and removal of the infected rose, roots and all, is recommended. Any roots remaining in the soil can carry the virus, so thorough removal is required if replacing the rose with another rose is desired. Removal of multiflora roses from the area removes a key reservoir of the disease. Some success has been attained if infected branches are removed into apparently healthy tissue, and rose growers recommend cutting the roses back by 2/3 in the winter or early spring to remove any overwintering mites. This is something many gardeners do routinely just to control the size of their roses."
Here is a link that might be useful: link for above
lindaw_cincy
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