scale on citrus
I just discovered I have a scale infestation on two of my citrus; a meyer lemon and a minneola tangelo. I have done a web search and it sounds like the first order of treatment is to thoroughly spray the trees with a mineral oil, or, if I can find it, "pest oil", which is supposed to be better. Has anyone dealt with this, and how successful were you in getting rid of the scale? I am thinking I should spray my persian lime as well, although it is not showing signs of scale at the moment.
In a few weeks to a month I'll need to move the citrus into the sunroom for the winter. Besides the spraying I've mentioned, is there anything I should do to eliminate the scale and prevent its spread to other plants?
Thanks for all advice. I've never dealt with scale before.