I don't know, but the leaf-edge thing, I see it on old foliage.

I think it is some kind of deficiancy.... either phosphorous or postassium would be my guess.

Here is a couple websites I go to when trying to figure my roses out. I have a few with magnesium and nitrogen deficiency earlier in the season. These websites don’t always agree exactly so I use all 3, but based on these I would say probably needs a little more potassium and maybe phosphorus.

https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az1106.pdf.

http://roses4az-mevrs.org/wp-content/uploads/Plant_Nutrion_Guide.pdf.

https://www.bhg.com/gardening/flowers/roses/solving-rose-nutrient-problems/

This is strictly a random guess, but if you use chemical fertilizers I suppose if could be buildup from that. On the other hand I see all kinds of weird things on older leaves of my roses and I don't use any fertilizer. Perhaps hard water might cause it too. I ignore everything and the roses still carry on. I call it tough love.

Thank you, all. They are older leaves. i don’t use chem fertilizer—I use an organic rose fertilizer. I will check out the possible nutrient deficiencies and the websites.