So many plant diseases start when developers plant tons of the same plant in developments. When one plant develops a disease, it spreads to the entire neighborhood. It is sad for this to be happening with roses.
Too bad those meatball shrubs - my friend calls them turd bushes - are immune to most everything except dog pee and hedge clippers.
American developers are too cheap to buy enough shrubs to make a decent planting. I hated hedges and turd bushes until I went to England. If they are planted and maintained properly, they can be beautiful. Unfortunately, in suburbia they dot the landscape like aesthetic tumors.