I have a bush that has got white spots on the leaves and branches, last year the same thing killed another one of my bushes. When you wipe the leaves it wipes off. Can you tell me what it is, or where I can take it to find out what it is and how to get rid of it?

Looks like either mealy bugs or soft scale.

Yep. Those are bugs. Pretty easy to control with pesticide. Get a good close look at what they are and then treat with the appropriate dose. I don't very often use pesticides but I have found it necessary on occasion to do so on my boxwoods.