Rita ....
I know that works for you in your climate, but if I took my roses down that hard in my climate, it would take several growing seasons for them to come back.
There are just so many variables.
Cindi .... some roses can have brown canes and still be healthy. I would suggest you make your normal pruning cuts and if you see brown pith, then cut lower until you see white pith.
Smiles,
Lyn
