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Virus in Orchids

Plants, leaves, and flowers of plants known or highly suspected of having virus.
CMV=Cymbidium Mosaic Virus, ORSV=Odontoglossum Ring Spot Virus. Note the common thread of tissue discoloration/collapse (necrosis) along the length of veins.
Repeated color break in untested Cattleya
Repeated color break in untested Cattleya		 ORSV in Cattleya deckeri
ORSV in Cattleya deckeri		 CyMV & ORSV in ReedStemmed Epidendrum
CyMV & ORSV in ReedStemmed Epidendrum		 Backlit leaves of ReedStemmed Epidendrum
Backlit leaves of ReedStemmed Epidendrum		 Cattleya dowiana suspected of having virus
Cattleya dowiana suspected of having virus
CyMV in SLC Mine Gold
CyMV in SLC Mine Gold		 CyMV in SLC Mine Gold
CyMV in SLC Mine Gold		 CyMV in Cattleya percivaliana
CyMV in Cattleya percivaliana		 CyMV & ORSV in Laelia lobata
CyMV & ORSV in Laelia lobata		 CyMV in Coelogyne rochussenii
CyMV in Coelogyne rochussenii
CyMV in Pescatoria wallisii(excessive # of spots)
CyMV in Pescatoria wallisii(excessive # of spots) 		Symptoms NOT caused by virus
[ Symptoms NOT caused by virus ]

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Admiral Schnitz06-Jun-2018 15:00
Labeling changed. Thanks. Schnitz
Passerby 20-Feb-2017 17:00
These are very helpful. However, you may want to change the abbreviation for Cymbidium Mosaic Virus to CyMV. CMV generally stands for Cucumber Mosaic Virus, and in some case, this virus can infect orchids.
Cheery 23-May-2009 16:51
thank you! so much if it wasn`t for this webssite i would if never been able to answer my questio for my reseacrh project.
Bev Byrnes 04-Mar-2008 06:29
Thank you for putting the photos in. At the moment we have suspect light green colouring on our leaves of our cymbidiums. I am wondering if this is a virus and seeing your pictures helps. Even though it doesn't help our situation, it is encouraging to know that someone has taken the time to warn other growers in particular we novices that have very little idea about much at all.
Yanto 10-Aug-2006 06:31
Thank you so much for posting the pictures! I'd have to be careful with the similar looking orchid of mine
Tom Bell-Games 13-Mar-2006 17:13
I am reminded of a conversation I had with an older grower in our area who tested a large group of plants - half with and half without symptoms. Interestingly, many of the plants with symptoms came back clean and many with no symptoms tested positive. I also wonder if some of the symptoms on the vegetative growth, such as spotting, are not the result of bacterial or fungal infections that result from a generally weakened condition of the plant.
Jade 12-Mar-2006 16:36
I am looking forward to the results of your latest tests . These photos are great. Your effort is highly appreciated.
Susan Taylor 11-Mar-2006 13:35
Great information, thanks for putting it on the web.
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