Here is a nice article on lime sulfur spray and how to keep it from burning your foliage.

Oops forgot something Lime and Sulfur Spray - Great Way to Knock Down Fungus On Your ...

I sprayed it after I pruned it to ground leaving no foliage. I sprayed the ground around the rose too. Picked off all the dead leaves. Sprayed again. Then put mulch. This is new spring growth. And still. Damn and lol.

Ok that sounds good, is that what the leaves looked like last year. Since it is spring likely not spider mites. To me it looks like a water issue either to much or to little. Too much water can cause root problems. Then the rose is unable to feed itself properly. At lease it will be easy to check. What your aiming for is to water deeply then allow your soil to dry out a bit so the roots will go down deeply to find water. Then again it could always be something else going on. But start with the basics first then move on.

Before proceeding further, I'd like to know the following: as 2 posters raised the question of lime sulfur effect, do the photos from the OP depict foliar disease consistent with lime sulfur toxicity?

eh, hard to find pics of sulphur damage online! But I dont think it is- because from what I can read, its described as "burn" damage, and just started's pics don't look burned..they do look remarkably similar to a lot of my roses tho, ( never used Sulphur) and yep..blackspot reigns most of spring here.. I've kind of given up doing anything about it, Double Delight (I have two of those) seems particularly prone to BS; it looks ugly, but doesnt seem to slow the bush down much- I still get bloom after bloom- I just pick them for the house (they last really well) and avert my eyes from its poor nekkid canes. Poor thing did get a bit cane burnt in the heat last year ..

Yours is coming along nicely! mines still waking up cos its been kinda chilly down here so far, atho the aphids and BS have already arrived..

Well I do know that the leaves dropped a bit on it. Here it is.

Compare it with the bully rose of my garden, Fragrant plum.

This is first year of drip watering for them. Maybe I am messing up there. But both plants get same amount of water. That's for sure. And double delight is on a mound while plum is in depression in soil. Otherwise same everything.