Thank you for following up after the training this week and sending these photos. Dave Clement took a look at them and, yes, this is indeed rust disease (Phragmidium) on your rose. It is unusual to see it here. Occasionally there are outbreaks of this disease in the South. This disease has to overwinter and most winters we would think are too cold for it to survive here. Did you bring in any newly purchased rose plants recently? It is possible with climate change that warmer winters could support this disease, but at this time, it is not common in roses here.

It also looks like you have some early symptoms of Cercospora leaf spot -- the purplish spots in your second photo. This is a fairly common fungal disease of roses. https://extension.umd.edu/resource/common-problems-roses

To manage both of these diseases, you can wait until after your first flush of flowers is finished and then prune back the plants. Discard the diseased material in the trash, not compost. You can then apply a fungicide. Dave recommends looking for one containing either Propiconazole or Myclobutanil as the active ingredient. Apply it according to the product label instructions.

Christa

You're welcome.