Whatever you do is only going to supress it. As soon as conditions are not right, ph, over fed, under fed, too hot, too cold, ect...ect, it's going to rear it's ugly head.
It's like pissing in the wind.
This is what is going to be required. A complete room tear down. Heat treatment or chemical cleaning of the room. New fans! Fans carry all kinds of nasty shit! Cleaning of Blowers,Pots,buckets, tools and anything that has come in contact with your plants, boiled or steam sterilized.
Start over from seed and treat the seed coat. Trisodium Phosphate is a couple bucks at Lowes. Then pray the embryo
Is not infected with TMV.
If you want to keep your clone only's, Tissue Cultures are the only way.
Or you can continue to grow and keep these cuts as healthy as you can and just throw away the duds and sick cuts.
I'm working on preserving the pure OG's but its going to take time, it's a slow process.