I think this is could possibly be a magnesium deficiency. My source is "Compendium of Rose Diseases (1983) APS Press. I also wonder if this is not last years leaves getting ready to drop since the Florida growing season probably is not cold enough to make a rose drop all of its foliage in the winter. The new growth looks healthy and vigorous with no signs of distress. Even here in Oregon I see those kind of old leaves in spring on the hardiest roses which did not drop foliage I doubt it to be RMV. All own root roses of this variety sold through 2017 originated from virus indexed mother block from Germany and all own root propagation was from the original stock. No licensed producer used cuttings from budded roses; so while it is impossible to say it does not have RMV, it is unlikely. If you bought the rose locally in Florida it was grown in fields in in Arizona where there is RMV, but it is usually passed on through the root stocks and from infected grafting materials. It typically does not spread to the own root roses unless cuttings were taken from infected plants - from budded plants. I would watch the plants and see if any more mature foliage develops these symptoms, if so, I would think about adding some micro elements to the fertilizer. My guess is these leaves will drop and your rose will look great. Looks like you have a lot of buds coming.

You would have to have your rose tested to see which actual virus (or viruses) your rose has. You did not state your temperature zone. This information is important since roses have a temperature dependent immune system that is effective against some rose viruses. If your virus is still visible in hot weather, it probably is not PNRSV or ApMv (2 of the most common rose viruses). https://sites.google.com/site/prunusnecroticringspotvirus/  https://sites.google.com/site/applemosaicvirusapmv/ However, it may be the other very common virus, RSDaV. Please note that RSDaV is spread by aphids. https://sites.google.com/site/rosespringdwarf/home -------------------------------------------------- My general reading about rose viruses can be found at: https://sites.google.com/site/rosevirusindexpage/

The only information you have given us is 'they are the exact same tree' and that may be true but subtle differences in location can change variables in these cases. A boulevard tree, for instance may get some salt from snow plowing. A tree close to other trees will not get as much sun as others in the open. That's why you might see some trees already past peak with fall colors while others that are the exact same species still have green leaves. This year in my country, color change has been scattered with spotty frost pockets and strong winds. Some years everything seems to change at the same time, some years not so much.

Looks just like my roses had two years ago caused by sawflies. The damage is done for this year, next spring give a good spray application to the foliage both top and bottom with Safer's Insecticidal Soap at first sign of leaf damage. I have low sawfly numbers this year, though should get with spraying as well!