Heads up about using any spray products that have fats or oils in them on your roses .. and other plants ..
Even if you rinse the plant off after application, the spray ... think anything with soap in it ... or oil, leaves a residue on the leaf. You cannot get it off. You can test this by spraying a piece of lettuce and trying to get every bit of the residue off ...
The only sprays that "wash off" are water soluable.
In the garden, you need a window of no spraying of 6 to 8 weeks where temperatures are lower than 85F after application to avoid burned foliage.