Help diagnosing spider mite damage

[Fredmax]

Thanks for that Southpark, I'm glad the Yates Mancozeb will work on mites (I heard commonly available products may not suffice) and that it's safe on a young Paph.
I have a flask of P Vietnamense I was too scared too open given my current challenge. I'll go ahead and start applying to the noticeable victims then eventually to all as a preventative if no adverse effects are noticed.

rbarata - the silver sandpapery/ghost leaf appearance has become commonplace on my Dendrobiums and got to the point of binning them as I couldn't help them once they got to that point and assumed it was cold damage. It's only this week have I now realized this as the result of spider mites, though I've only ever spotted one.