Axel, wait ...
I'm not saying that your plants are infected, I'm just warning you that it is available. I hang out postrayus available to me materials presumably infected by mycoplasma Hepatica plants.
As far as I know the forums Orchid - it is treated, although it is very difficult. Specific antibiotics are used and managed, or there is no cure - only to find out next year, when the plants bloom and grow.
The main difficulty - in isolation from other plants and duration to obtain the result.
