I cut back on fertilizer amounts somewhat during the heat of the summer, but I definitely keep fertilizing.
Your plants are still blooming so they still need food. I'd provide regular, light applications of fertilizer through early fall.
Jimmy, roses are known to be heavy feeders, just make sure you keep them well watered during dry spells.
Thanks guys, its unanimous. I will put some more granules out today.
Unanimity is so rare these days. When you get it, run with it. LOL!