Have you tried planting garlic around your rose bushes? I planted a new rose bed last year and again another new one this year. Planted garlic around the 1st bed and never have had any bug problems from them. The other bed so far hasn't had any bug problem but I'll plant my garlic this fall around them just the same. In my veggie garden, I planted marigolds around the diameter of the garden to keep the bugs at bay. I had problems with our neighborhood rabbits jumping over my chicken wire fence to help themselves but since the marigolds have grown tall over the main entrance, they have quite helping themselves.
Suz in Iowa