What can I do about scale all over my rose bushes?
Scale on Rose Bush
First we need to be sure that it is in fact Scale that we are dealing with. Here is a link to a good informative article on Scale with pictures: http://ipm.ucanr.edu/PMG/PESTNOTES/pn7408.html#MANAGEMENT
To control the scale problem, here is a link to a spray concentrate that will take care of the problem if it is scale.