Is this a virus?

[Paul Mc]

I'm wondering if this Dendrobium has a virus or just a case of too much light.

[WhiteRabbit]

The white areas could be burn. The others, I don't know, but doesn't look viral to me.

[lepetitmartien]

Difficult to tell, could be burns, fungus…

Can you make a better pic of a leaf?

[Paul Mc]

How is this?

[lepetitmartien]

Mhmm check for spidermites

The picture is too small to be definitive, but the necrosis can be fungal (and it's not contradicting the acarian issue). Is there patterns?

[Paul Mc]

There aren't any patterns that I can tell. I've checked for mites and came up negative but sprayed a multipurpose fungicide and bug killer (including for mites) on it a while back. The red color continues show and seems to be slowly spreading.

[katrina]

What den is that?

I have a few (bracetosum, tannii, Hibiki) that do something very similar to that when they are about to shed their leaves. It's starts as a weird reddish coloration and eventually they fall off. It's not exact...but very, very close.

[Paul Mc]

Katrina, it is a capituliflorum.

[katrina]

Deciduous, right? If it were mine, I would just watch. I could be wrong but I am leaning toward the leaves are about to drop and it's just getting ugly. If that's the case...it's nothing to be worried about. Usually the growths are a bit more mature before the drop start but maybe it's responding to a change in culture.

Or, you could test it for virus but it doesn't look like any virus that I've ever seen.

[Paul Mc]

Thanks all! I'll keep it separated and a watchful eye on it. I do believe it's semi-deciduous but it didn't do this last year. Perhaps I did something different.