This doesn't look good
Last year I purchased Iobelle and it is now exhibiting this unsettling yellowing of the leaves. This looks suspiciously like the descriptions of rose mosaic virus. :(
I have just ventured into rose growing in zone 5 (lured into it by all the gorgeous pictures here!) aside from one knockout rose I have had since moving here almost 5 years ago. Is this a common problem among roses? Should I dig out the whole plant or just prune off branches? I may be paranoid, but the lower leaves look slightly yellow to me as well. This rose pretty much died down to the soil line this last cold winter. I purchased three other roses from the same supplier but they exhibit no signs of this yellowing. Are they likely to also be infected?
Thank you for and info/advice .