How to Manage a Phyllosticta Infected Orchid

[aussieboy]

I’ve read from AOS that Phyllosticta is near impossible to erradicate from an infected orchid. As far as the title of this post goes, can you share your experience on managing the spread of this plant disease? if you own a collection of orchids, would you completely isolate an infected plant throughout its lifetime?

If water and humidity helps spores to grow on leaves, does watering the roots only a good idea to avoid the spread?

I own a vanda that is infected. Unknowingly it has Phyllosticta, I shared the water across my collection which caused the spread. Now I have a new set of seedlings that I don’t want to get infected.