Help,Miltonia bulb, oncidium mix with spots, weird varigation on cymbidium

[Matorchid]

I know there is something wrong with these guys, any insight would be greatly appreciated

1 Cymbidium has weird variagation, thought it might be fert. burn, changed that, still no go. tried to find disease or fungus but that was not helpful, asked orchid lady at our nursery, and no help there.I am kinda thinking on bad end at thispoint. Is this CMV or TMV? Does anyone know where to get the test kits for this!
2 Intergenerics have weird spotting on leavescouldnt seem to find anything on this as well
3 Miltonia psuedobulb turned yellow in past 2 days, the bulb isnt soft, just yellowing(whole thing) was getting ready to repot collection when I saw this.
Cant seem to see any buggies? Have tried some sprays but to no avail.
At a loss on what to do at this time, Plz help