You can buy a bag of ladybugs at the nursery or garden center. Put them in the refrigerator overnight to slow down their metabolism
(otherwise they would probably fly away). Open the bag the next day and place them on your roses or on any plant that may have bugs.
I have something eating the buds off my Buddleia right now.
Makes me so mad! It's the deep, dark purple (midnight something...) and so many of the buds are gone!