I've found 'Apricot Twist' to be by far the most Blackspot resistant miniature I've ever grown. Also quite good is 'Magic Wand', but its a very informal flower on a tall, inelegant plant. I know there are one or two others that are very disease resistant, but I have to look over my records to find their names.

Thanks,Ken and Paul for answering.

I do have Apricot Twist and love it. Here it is in the front center.

I posted a photo of Pacific Serenade a few days ago -- I've found this variety relatively disease resistant. Some black spots and yellowing leaves now and then, but it's never been a major issue for me.

Bugs are problematic -- namely rose sawflies, aphids, Japanese beetles. A few years ago I also had a bad spider mites problem earlier in the season. Fortunately it was easily controlled by blasting them away with water.

All in all, this yellow rose is not fussy -- at least in my climate (barely 7a).

I would check out any of the Ralph Moore mini's. He bred for health first and beauty second (not that any of his roses are ugly), I have Diamond Anniversary, Peppermint Parfait, Sequoia Gold and an unknown mini from him. I also have Maroon Eight from Burling. All of them have had great disease resistance.

I also have Lavender Crystal. It is not a Ralph Moore rose and I hear it gets a bit of black spot, but I don't get black spot (usually) in my yard.

Those are just gorgeous, and all look extremely healthy. Gotta fall in love with Lavender Crystal -- the blooms look like a true lavender color. Thank you for posting those photos.