Ctna. Rojo X Ctna. Keith roth is losing roots!!! Please help!

[Mikeg]

I mounted this orchid about two weeks ago and I was looking today and some leaves are wrinkled along with some of the Pseudobulbs. After taking it off the mount most of the roots are brown and mushy!!! What do I do??!!

[Mikeg]

Also....What does Ctna. stand for?

[cb977]

I can't find a Ctna Rojo in Orchidwiz.

I'm assuming it's more likely Lc Rojo
x Cattleytonia Keith Roth (Cattleya bicolor x Broughtonia sanguinea)

I can't imagine why the roots would turn mushy with it being mounted unless you've been soaking it

Are there any good roots?

[phalaephila]

Cattleya alliance plants are sometimes particular about repotting/mounting, and sulk unless they are in a growth phase, with new roots starting to show. Were new roots growing when you mounted the plant? Did you cover the roots with sphagnum moss - have any photos? Hope we can help.

[Mikeg]

Tjere are a couple few good roote left. And yes there eas some nre growth and there are pictires on my profile thing.

[orchidsamore]

I mount thousands of orchids and the problem with Cattleya alliance is that they do not get enough water.

The thing I find unusual is that the symptoms you see happened so fast, so I think they predate the mounting.

Over the course of a year a mounted Cattleya will discard all its old roots as it grows new roots exposed on the mount.

I do not think I have ever seen pseudobulbs wrinkle in two weeks.

The plant by the way is named Ctt. Rojo x Ctna. Keith Roth. It does not appear to have been registered.

It used to be Lc. Rojo (C. aurantiaca x L. milleri), but the C. aurantiaca was moved to the new family Guarianthe and the L. milleri along with all the non-Mexican Laelia were moved to Cattleya, hence Ctt. Cattlianthe. And so much more for the useless information section.

I am in the process of updating all 2500 photos on my web site with their new names so I can not get them out of my head just now.

[gnathaniel]

A couple of comments based on the photos in your gallery (just my , of course!):

It looks like your plants already had a lot of rotted roots, probably from the pot staying too wet for a long time. The few good ones were on top of the medium and got more air. I think Jerry's right about the plant responding now to previously-occurred damage.

Not as familiar with the aurantiaca and bicolor parents (thanks for the ancestry info, Sue and Jerry!), but Cattleya (Laelia) milleri and Broughtonia sanguinea both need exceptionally good drainage and very high light to do well. I recently got a Bro. sanguinea mounted bare on a stick and was instructed to only water it on very sunny days.

You may see better results remounting with a much smaller sphag pad and only watering when the plant dries off. Bright light, high humidity, and good air movement will also be beneficial. Your plant should sprout a new flush of roots with the next new growth cycle. Good luck and good growing!

--Nat

[Mikeg]

Thank you all! And that is weird that it is a Ctt. because my tag says Ctna. So should i re-mount it or re pot it?

[Mikeg]

What do I do??

[WhiteRabbit]

hey mike - so you said in chat that you repotted this one ?
try some kln or superthrive to encourage root growth.
be sure to not over water - use a skewer in the pot to help determine when to water - I let Catts be almost completely dry (very slight dampness detected on skewer by touching it to face and it feels just slightly cool)

gl!