Q.Rose rosette
Is this Rose rosette or healthy new growth?
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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