MichiganDot
Answered on April 4, 2018
Many roses have reddish new growth which makes identifying rose rosette virus difficult. Judge yours in relation to other canes. One hallmark I kept reading about was the superabundance of thorns on infected canes which isn't apparent on your pictures. But is this very early infection? I found this website had good information and pictures as well as detailed description of signs of infection.
http://www.clemson.edu/extension/hgic/pests/plant_pests/flowers/hgic2109.html
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