Neal ...
I know this is a bit off topic, but what may be true for roses and BS may be true about other plant disease issues.
One thing to keep in mind as you are looking for disease resistant roses is that the definition of "disease resistant" changes over time. As breeders have learned more about BS and created breeding lines with greater resistance to disease, they have raised the bar each decade. So, a rose that was considered to be disease resistant in the 1970s would never pass that test today.
However, rose literature doesn't reflect that change in perception. That's why it is hit-and-miss when you are researching roses. That does not mean that an older rose may not be resistant to the BS strain in your garden. Some of them are incredibly solid plants.
Smiles,
Lyn
