I was watering my Jade plant the other day, and I thought that I saw bubbles. Upon closer inspection, I noticed that the "bubbles" were moving. As the water soaked into the dirt, the "bugs?" seemed to work their way into the dirt. Only a fraction of them remained above ground. This morning, I looked a bit closer and see some white stuff. I'm guessing that this is root mealy bug, but I want to make sure. I really don't want to throw the plant out, but I think it might be necessary. Also, I several other house plants, all of them are in another room. Do I need to worry about them? Are there any precautions I should take? I always watered this plant last, only because it is in another room. Thanks for any advice! I took a picture of the white stuff.

Here is a link that might be useful: Icky White Stuff