Is This Mosaic Virus?

[quiltergal]

I bought this Phal. Brother Sara Gold in April. One of the leaves had been trimmed. I thought maybe it was due to sunburn. Some of the older leaves are showing a lighter green mottling that wasn't there a few weeks ago. Is this Mosaic virus? I'll be really sad if I have to destroy it.

[quiltergal]

[Shirley]

I have had similar markings on some of my phals (and they get much worse as the cells seem to collapse!) but I've been assured by our Society experts that it is cold damage. The new leaves growing in look normal so I'm hoping that is the end of it. I've adjusted the heater setting so it doesn't drop as low overnight - not below 60 deg. Unfortunately the marked leaves are there for a long time.

[quiltergal]

Thanks Shirley! The new leaf looks fine so you may be right. Perhaps the grower I got it from had a problem in their greenhouse this winter. I'd hate to stop buying from them, they're such a nice older couple.