I probably could have just covered the bases with peat moss, but I wrapped a couple of the young roses, especially those just hardy to my zone. I am zone 6a on most maps, but I try to plan for zone 5. I have a southern exposure, but seem to be hit with heavy winds. So many of my early attempts (grafted) died over winter that I try to do what I can to help them survive. I had much better luck this year. My roses survived with very little die back.
The rose's name is "Overnight Scentsation." I took off the spotted leaves today. I think the spray program will help.
Roses, when I was shopping, the Bayer chemicals were slightly cheaper at Lowe's than Walmart. I didn't check Home Depot, but they sometimes have coupons online.
I have been using a Bayer systemic with fungicide, not the 3 in 1. I suspect it will take some time, but I should have less blackspot this year than last.