In article , Cass
writes:

There is no such thing as an RMV resistant rose. If you graft an
infected root to a healthy cutting, it will be infected.

I do not know that this is true at all. Rosarians have observed for
years that some virused roses are weak, sickly and damaged, while
others are vigorous, floriferous and viable. Really, there are too many
variables to know exactly what is going on, whether the really sickly
ones have RMV of both the rootstock and the scion, whether some of the
RMViruses are more virulent than others, whether the problems are
caused by rootstock incompatibility. Until testing is more accessible,
we can only speculate what is going on.

Interesting. Are you saying is an RMV infected rose which remains vigoruous,
floriferous and viable "may" be RMV resistant? That is possible.

This entire RMV thread has been most informative.

Julie