I've got a plant with scale that I'm treating with Bonide systemic granules, and swabbing what I can see with alchohol. I'm hoping between the two I'll get it licked. Make sure you isolate that plant. As Tess says scale and mealies spread like wildfire. Good luck!
Terri, Let me know how they work, please. I am always interested in adding new stuff to my insecticide arsenal! I hate using chemicals but I want the dang things gone and fast.