FWIW -- One of the first roses we acquired was 'Reine des Violettes'. I learned a lot from that rose.
It grew here for 20 years, and during that time, we, and others, would stand and look at it, and marvel at the fact that it had NEVER shown a sign of RMV. (This was long before testing for it . . . )
Finally, it's 20th winter passed, and it got so cold that plants in the area actually froze. It set low-temp records. and RdV actually fell into dormancy.
When it leafed out again in the spring, it looked like a paisley scarf. There wasn't a single leaf that was not marked.
Then, it died.
