hi all, I will be babysitting my mothers plants this summer. She's off on a grand vacation. Unfortunately, all of the plants I've ever gotten from her have had scale on them. I'm sure the plants visiting this summer will be no different. I have limited space and her plants will have to be integrated with mine. Anyways, what can I use to treat this scale? I want to kill-em-dead. No messing around with dish soap and whatnot.