Dendrobium victoriae-reginae leaves turning red.

[BrassavolaStars]

Hello all,

I do not know what is wrong with this Dendrobium. All the leaves mottled and turned red. Since this photo was taken, most of the leaves are now a deep crimson red (similar to maple leaves in fall). Could this be a virus as it started out rather patchy? It appears mostly on the top side of the leaves whereas the underside of the leaves is more yellow and brown.

Most of the leaves have begun to fall off now even on the newest canes that hadn’t finished developing.