Yellow and dying Onc

[larrylwill]

I bought 4 different orchids from a lady off ebay, when they came in they looked yellow to me, I emailed her and she shipped me 4 more. The new ones looked the same. Its been more than a month and here are 2 pictures of the same name orchid, the 1st one and the 2nd one. As you can see they are dying, the first one is almost gone. She has been ON Ebay for over a year with only 3 neg feedback over the year with over 900 pos.
Anyway can anyone tell me what might be going on and how can I save these, some of the others are also puny yellow, these were the biggest.

[LovePhals]

Well you shouldn't have been sent yellowing oncidiums, those do not look healthy. When Oncidium leaves go yellow they are dying off. She should give you a refund if they are all yellow and dying.
Have you tried giving them a fungicide/miticide spray for extra precaution. Are there any good roots? If so, just make sure they stay moist and hopefully it will send out new growth.

[Nexogen]

Cold Damage

[Ordphien]

They look severely dehydrated to me.

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[larrylwill]

I have about 12 Cats and the room never gets below 59 at night, in the day it is around 70 normally. Some have already bloomed. I also have cats and Phils. The cats and oncs I have on lights from 5am until 2pm since I do not get good sun in that room. All the Phals bloom every year. I have an Onc in bloom now and a cat just finished.
I water them all at least once a week.
I beleive they might have got cold in shipping. I could move them into the Living Room which is 75,

[Nexogen]

Treatment of Plants After Cold Stress

Click here > Cold Damage

[Orchid Whisperer]

The 2 plants that are at the center of you photos appear to be Cattleya alliance, they don't seem to be Oncs.

Regardless, I would treat them as Nexogen has suggested. It is likely cold stress if they were shipped within the last month or so.

[silken]

Originally Posted by Orchid Whisperer

The 2 plants that are at the center of you photos appear to be Cattleya alliance, they don't seem to be Oncs.

Regardless, I would treat them as Nexogen has suggested. It is likely cold stress if they were shipped within the last month or so.

I thought they looked like cattleyas too. It looks like old sheaths at the top of the pseudobulbs too. Unless it is dead cut off leaf.

I had some damaged with cold while shipping and they got black marks, not yellow like this so I would have said cold damage during shipping but they don't look it to me. Very dehydrated looking.

[larrylwill]

Originally Posted by Orchid Whisperer

The 2 plants that are at the center of you photos appear to be Cattleya alliance, they don't seem to be Oncs.

Regardless, I would treat them as Nexogen has suggested. It is likely cold stress if they were shipped within the last month or so.

They were shipped about 3 months ago, not cold.
Here are pictures of the roots, I just re potted them and put some root power the roots.

[silken]

What is the name of this orchid? The roots look pretty wet.