It has not yet gotten onto my equitant oncidiums, and I hope it doesn't I have been amassing species for years and it would kill me if I lost even one. This scale has mostly infested the catts and related hybrids. I have lost 2 leafless orchids too so I know all about how it likes roots. I think that is why I haven't been able to be rid of it. The picture I posted is of a sheath that was destroyed by the scale from my largest catt, it is a beauty and very large over 20 psuedobulbs. I pulled that off yesterday, I had no idea it was even that bad on that plant. I do not grow my plants in my home but in a greenhouse in a field adjacent to my home, that is how I got the fire ants. I am ordering new media today and will repot next week, hopefully by then I will be rid of the ants. This is all a result of my neglect this season I started back to school again and was too busy to do the preventative maintenance needed to stop this all from happening.
One more question, should I spray this on the plants before I repot or should I do it while the plants are still in their old media?