Welcome to OrchidsForum.com. We are a friendly online community for Orchid Growers all over the world. If you haven't joined yet we invite you to register and join our community. Hope to see you on our forums!

What has discolored the leaves?

Discussion in 'Issues, Disease and Pests' started by CoveLady, Apr 7, 2017.

  1. CoveLady

    CoveLady Active Member

    Messages:
    571
    Likes Received:
    120
    Location:
    Brevard NC
    The leaves of this NDL have a discoloration that makes them look awful, am not sure what it is. It does not rub off, new leaves start out OK but eventually become discolored. It does not spread to other orchids. Ho P4050225.JPG w can I get rid of it?
     
  2. Marni

    Marni Well-Known Member Staff Member Supporting Member

    Messages:
    13,517
    Likes Received:
    3,317
    Location:
    Santa Rosa, CA
    You might want to test it for virus.
     
  3. Chuck-NH

    Chuck-NH Well-Known Member

    Messages:
    1,983
    Likes Received:
    1,925
    Location:
    New Hampshire, USA
    Hi Marni, what type of virus would you suspect? The new growth in the picture looks very clean. Of course I'm more used to virus that are prominent in the new growth (yellow bean on Masdevallia ☹️).

    Chuck
     
  4. Marni

    Marni Well-Known Member Staff Member Supporting Member

    Messages:
    13,517
    Likes Received:
    3,317
    Location:
    Santa Rosa, CA
    The most common would be Odontoglossum Ring Spot or Cymbidium Mosaic Virus. These show their symptoms in the older leaves. The new growths are clean and they show the syptoms as they age. Agdia has a test for these two. The symptoms are the opposite of Bean Yellow Mosaic Virus.
     
    Chuck-NH likes this.
  5. Chuck-NH

    Chuck-NH Well-Known Member

    Messages:
    1,983
    Likes Received:
    1,925
    Location:
    New Hampshire, USA
    Thank you for that information!
     
  6. Fumiaki Takahashi

    Fumiaki Takahashi miniature orchidaholic

    Messages:
    295
    Likes Received:
    88
    Location:
    Georgia
    I hate virises
     
  7. CoveLady

    CoveLady Active Member

    Messages:
    571
    Likes Received:
    120
    Location:
    Brevard NC
    How do I test it for a virus?
     
  8. Marni

    Marni Well-Known Member Staff Member Supporting Member

    Messages:
    13,517
    Likes Received:
    3,317
    Location:
    Santa Rosa, CA
    Agdia sells test strips for CYMV and ORSV here.
    You can also send samples to Critter Creek.
     
  9. Marni

    Marni Well-Known Member Staff Member Supporting Member

    Messages:
    13,517
    Likes Received:
    3,317
    Location:
    Santa Rosa, CA
    Until you get it tested, you might want to keep it segregated. Also be sure that you are using sterilized cutting tools on all of your orchids. Ray recently posted the link for this site and it is worth downloading. It may be something less devastating than virus. Orchid Pests, Orchid Diseases
     
  10. AnonYMouse

    AnonYMouse aka Ree, the not-so-stealthy lurker

    Messages:
    124
    Likes Received:
    47
    Location:
    SF Bay Area
    I give up!

    What does NDL mean?

    Some acronym the kids are now using? A genus?
     
    Marni likes this.
  11. Fumiaki Takahashi

    Fumiaki Takahashi miniature orchidaholic

    Messages:
    295
    Likes Received:
    88
    Location:
    Georgia
    I was about to ask the same thing.
     
  12. CoveLady

    CoveLady Active Member

    Messages:
    571
    Likes Received:
    120
    Location:
    Brevard NC
    The orchid societies in the Deleware Valley, PA use it to define a plant without an identification of any kind. It is stands for NO DARN LABEL or NO DAMM LABEL if you prefer. I didn't know it was not universally used.
     
    AnonYMouse and Fumiaki Takahashi like this.
  13. Fumiaki Takahashi

    Fumiaki Takahashi miniature orchidaholic

    Messages:
    295
    Likes Received:
    88
    Location:
    Georgia
    Haha... I though it was some latin phrase or somthing
     
  14. AnonYMouse

    AnonYMouse aka Ree, the not-so-stealthy lurker

    Messages:
    124
    Likes Received:
    47
    Location:
    SF Bay Area
    I've only seen NoID used.
     
    Fumiaki Takahashi likes this.
  15. Fumiaki Takahashi

    Fumiaki Takahashi miniature orchidaholic

    Messages:
    295
    Likes Received:
    88
    Location:
    Georgia
    Same here.
     
  16. CoveLady

    CoveLady Active Member

    Messages:
    571
    Likes Received:
    120
    Location:
    Brevard NC
    I've never seen that one.
     
  17. Fumiaki Takahashi

    Fumiaki Takahashi miniature orchidaholic

    Messages:
    295
    Likes Received:
    88
    Location:
    Georgia
    Hm, thats odd.