Most likely not as downey mildew seldom crosses major veins instead the spot well begins grow angular. It does look like spot anthracnose. If you could take a look at the under side of the leaves. Or post a picture of the back it will be much easier to tell what this is and is not.

Did you spray with anything? Over head watering can also help cause black spot. Getting the leaves wet from the hose when watering the pots late afternoon(damp leaves @ night) maybe adding to the reason.

Looks a lot like bacterial leaf spot to me. My roses had come down with a nasty case of such a few years ago, it attacked almost all and defoliating them badly, even black spot resistant varieties. Thankfully, I've now had two summers with little infection and hopefully such will remain that way.

Bacterial leaf spot

The only two diagnosed DM infestations I've heard of in east Tennessee were both in fall, and the worst symptom was total leaf drop. One additional diagnosed by a plant pathologist based on symptoms was up on the plateau near Cookville and it was a late spring problem, again, massive leaf drop.

I ha how do you get rid of bacterial leaf spot?

I clipped leaves off of several plants showing these spots & photographed the fronts and backs of them. In not sure if these are all the same type of spots or not!

Thank you to all who have replied so far!

I have not sprayed anything in my yard at all, ever. And my neighbor does not really seem to care about their yard enough to spray anything, so I doubt that caused this, also since it isn't confined to one area I don't think it could be that. I also have not watered much with the hose recently because we have had fairly regular rains for the past few weeks, but it hasn't been overly rainy either, so it could be blackspot but I don't think that's what at least some of it is. Some of the spots are a very dark reddish color, and I have never seen BS look like that..

Here are the fronts:

And the backs:

Thanks again for the help, everyone. My roses really appreciate you!

& a special thank you to you, Ann. I truly appreciate you always taking the time to respond to my posts, since you are the closest to me & one of the most knowledgeable rose growers I have "met", I always look forward to your posts & responses. :)

Jessica.

Here are a few close ups, just in case.

My best guess is Twros is correct. I believed mine was anthracnose because they did not yellow or fall from the bush for a very long time. It was hideous looking as yours are. My climate was perfect for anthracnose the entire year. Anthracnose spots go all the way thru the leaf to the underside. I left them on because I live so far north and the leaf surface still had a lot of green for photosynthesis. Most of my spots had necrotic centers thou the center seldom fell out. Here is what mine looked like. The yellowing you will see in the first pic did not occur till the end of the season. The spots were there for the whole season. Never had it like this before and hope to never see it like this again. Only 3 rose were immune.

The next photos are seriously out of focus.

Now the back

I don't remember these being that out of focus.

twrose would you happen two know if mine also look like bacterial spot or anthracnose. I don't spray and grow very healthy roses this infection was on all but three of my roses and most perennials.

I'm sorry I asked that question TennesseeN I should start my own post instead.

Patty, the foliage on my roses had more closely resembled that of TN's. I had experienced a very heavy infestation from top to bottom of the plants and even newly developing foliage was shed, sigh! Honestly, I'm no expert to these several different leaf spot diseases, all I know for sure is just how devastating they can be :(

Gibsongirl74, I recall reading that a very diluted solution of vinegar, something like a teaspoon per gallon (don't state me on that though) will change the ph upon the surface of the foliage and help to discourage further infection. I did attempt to use the solution, though to little avail during that particularly wet summer.

Thank you Twros at least in my case the roses kept their foliage. Very cool damp and sunless summer last year. The roses and I survived. Certainly was an ugly foliage year. Thanks again and good night.