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Unread 03-16-2012, 07:06 PM
Eahonn Eahonn is offline

Join Date: Mar 2012
Zone: 7b
Location: Greensboro, North Carolina
Posts: 77
Default Cattleya keeps self destructing

This cat keep sending out all these new shoots and new roots and they initially look healthy and then shortly turn black and die. It is with other healthy orchids and they are fine. what can I do to help it. Photos are included of plant and roots.
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Cattleya keeps self destructing-imageuploadedbytapatalk1331939085-771580-jpg   Cattleya keeps self destructing-imageuploadedbytapatalk1331939108-157100-jpg  
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Unread 03-16-2012, 07:32 PM
Wjs2nd Wjs2nd is offline
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Join Date: Aug 2011
Location: Minnesota
Posts: 454

I'm think either pest or disease. I would try a natural soap spray with neem oil. When did you last repot? Maybe try a repot (there could be some bad medium lurking in the bottom).
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Unread 03-16-2012, 07:43 PM
Eahonn Eahonn is offline

Join Date: Mar 2012
Zone: 7b
Location: Greensboro, North Carolina
Posts: 77

It is in fresh material, what disease?
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Unread 03-16-2012, 07:45 PM
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silken silken is online now
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Join Date: Feb 2009
Zone: 2b
Location: Saskatchewan, Canada
Posts: 9,667

It looks seriously over-potted as well, unless it is attached to a large amount of healthy roots.
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Unread 03-16-2012, 08:26 PM
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Leafmite Leafmite is offline
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Join Date: Sep 2010
Zone: 5b
Location: Ohio
Posts: 7,452

I think this is black rot. I had this attack a few of my orchids this past autumn. They were all near eachother and some were unscathed, some were saved, some died. Here is a site to help.
Orchid Pests, Orchid Diseases
I read that using a fertilizer with calcium might help as this might be caused by a lack of calcium. I added oyster shell in hopes this is true. I also read that keeping the rhizome above the surface of the media can also help prevent this so I removed rock from around the rhizome. I used isopropyl alcohol with good results. The ones that died were not caught in time. It seems that Brassavolas and cattleyas can be prone to this. Good luck.

Last edited by Leafmite; 03-16-2012 at 08:29 PM..
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Unread 03-17-2012, 03:18 PM
OrchidLife OrchidLife is offline
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Join Date: Aug 2011
Location: Florida
Posts: 15

Probably need to pull it out to check on the roots. I'd also put it in a much smaller pot
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Unread 03-20-2012, 04:36 PM
james mickelso james mickelso is offline
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Join Date: Jul 2010
Location: Oceanside, Ca
Age: 67
Posts: 3,463

Hi, I have had the same problem when my catts and laelias were over potted and wet. If you can, I would repot it right away in as small a pot as you can get it into. Once you get it into the pot, don't water it for awhile. Oh, when you take it out of the pot, dust the root area with cinnamon powder. Once potted up, place a baggie over it. Just drop a baggie (opening over the pot and all) over it and place it in a fairly bright location. If it is indoors, place pot on a saucer of gravel with water. Don't put the pot bottom "in" the water. Just on top the gravel so there is some humidity. A mini green house if you please. After a week or so, dribble a little water around the pot. Not a lot. Just enough to make the orchid think it might be raining. The rot is caused by too much watwer in the potting mix. I have lots of catts (and other species) that I have saved this way. I take all the half dead and dying and salvage them. Once I figure out how to post pics I'll put up some before, during, and after pics for folks like you. Don't despair. You can bring it back. It takes awhile though. Ther real trick is to get it to put out a new root and that can take some time. But spring has sprung. Just keep it warm and bright.
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cattleya, destructing, healthy, included, orchids, plant, roots

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