I've had this Mugo pine sitting around since last year and havent done much with it. I initially brought it home, cleaned out dead needles, and cut a few branches then essentially left it untouched. I saw that i could do some more branch selection this time of year, so i figured i would bring it in to do some summer work. Cleaning it up, i notice most of the buds look white and did not appear to candle out like i see other pines. Is this normal? Some kind of scale?