Fusarium ?

[NYCorchidman]

Originally Posted by ALToronto

Is this not treatable in an otherwise healthy plant? It's one thing if you need to get rid of the plant, but I would try to treat it and then at least donate it to my orchid society.

And is cutting the rhizome the only way to detect fusarium?

OMG!
You should never donate sick plants!

---------- Post added at 01:50 PM ---------- Previous post was at 01:45 PM ----------

Originally Posted by WhiteRabbit

Thanks - I expected as much. Plant is in great shape - which is why I was so surprised to see this ... but, not a hard one to replace, and, I need to downsize anyway ...

That reminds me of my cattleyas.
I divided a few of my cattleyas earlier this spring.
Well, almost all of them had this ring when cut.
I only threw away one, which was my beautiful Goldenzelle Lemon Schiffon.
It was growing well but all of sudden the roots started to rot out. The purple ring was very clear and thick on that one. I tossed without second thought.

The other cattleyas had tons of roots actively growing and flowering, so I kept them. They are all fine.
Now this makes me think is purple always a sign for the presence of fusarium or can it be something natural??
or is it that the plants will eventually die over the course of a very long time all the while spreading the disease?
or can fusarium affected plants fight the disease off on its own?

Anyone has answers??