Scraggly Rose leaves
Thank you for the image. It reveals damage from herbicide (weed killer). This most likely occurred due to drift on a breeze. Such damage occurs inadvertently while spraying nearby weeds. Several herbicides which can produce this sort of damage are 2,4-D and Crossbow.
There's no guaranteed way to repair the damage. Given time, and water when needed, the rose may recover if it received a sub-lethal dose.
Thanks so much!
You're welcome. Enjoy your garden!