Orange balls/bugs on phal's rotting roots?

[sweetjblue]

Per Dr Huans page:  Control: Removal and destruction of infected plants and growing media;
Sterilization of growing media; Avoidance of excessive
watering. Chemical control not recommended.

One of the main causes is moisture. That is not to say that you've been overwatering, it probably happened long before you got the plant.
As already mentioned perhaps you want to unpot, clean the plant up really well, let it dry out for a few days and then repot into fresh clean STERILE media. If you have the ability to care for a mounted plant that is the route I would go. It would be able to dry out quickly and help keep these uglies at bay somewhat if they return. They are difficult to get rid of.
Once you've let the plant dry out there is the danger that the spores (red balls) which are also dry could be carried to other plants via even the mildest of breezes, so you risk infecting all plants with this. It may sounds cruel, but unless this is a very special or valuable plant, the best thing might be to get rid of it and get another plant without issues.

Good Luck with whatever you decide to do.

Judi