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!

Masdevallia calosiphon

Discussion in 'Orchid Species' started by Gerrit, Nov 30, 2022.

  1. Gerrit

    Gerrit Well-Known Member

    Messages:
    941
    Likes Received:
    2,213
    Location:
    Ghent, Belgium
  2. Marni

    Marni Well-Known Member Staff Member Supporting Member

    Messages:
    13,732
    Likes Received:
    3,530
    Location:
    Santa Rosa, CA
    How nice. The one I bought came with virus.
     
  3. Gerrit

    Gerrit Well-Known Member

    Messages:
    941
    Likes Received:
    2,213
    Location:
    Ghent, Belgium
    It's a section of Masdevallia I like a lot.
    Never had any viruses on Masdevallia. Do you see it on the leaf or flowers or both?
     
  4. Marni

    Marni Well-Known Member Staff Member Supporting Member

    Messages:
    13,732
    Likes Received:
    3,530
    Location:
    Santa Rosa, CA
    I like this section too. Bean Yellow Mosaic Virus is the one that is most often seen in Pleurothallids. It shows up only on the new leaves and then fades as they age. If you hold up the new leaf to the light, the virus shows up as a mosaic pattern of darker and lighter greens. There are others that will infect them, but BYMV is easily spread not only by tools, but also by aphids.
     
  5. Gerrit

    Gerrit Well-Known Member

    Messages:
    941
    Likes Received:
    2,213
    Location:
    Ghent, Belgium
    Oh, ok! So that's what I had on my Masdevallia and Dracula orchids when they have a been visited by aphids this year. It didn't spread to other parts of the plant and new leaves once I got rid of the aphids thou. The plants look ok now, except for the infected leaves.
     
  6. Gerrit

    Gerrit Well-Known Member

    Messages:
    941
    Likes Received:
    2,213
    Location:
    Ghent, Belgium
    This is an infected leaf from Dracula gorgona. What should I do? Plant still flowers like it's ok.

    20221202_105849.jpg
     
  7. Chuck-NH

    Chuck-NH Well-Known Member

    Messages:
    1,990
    Likes Received:
    1,936
    Location:
    New Hampshire, USA
    Hi Gerrit,

    That could just be physical damage from the aphids. Watch for patterns on the new growth…easy to see on Dracula. I have had to throw away some plants in the past.

    Chuck
     
  8. Marni

    Marni Well-Known Member Staff Member Supporting Member

    Messages:
    13,732
    Likes Received:
    3,530
    Location:
    Santa Rosa, CA
    I agree with Chuck. That isn't virus. I would guess it is insect damage.
     
  9. Gerrit

    Gerrit Well-Known Member

    Messages:
    941
    Likes Received:
    2,213
    Location:
    Ghent, Belgium
    Thanks Chuck and Marni. Very reassuring to hear that this is not a virus. The aphids problem was in spring, so if there was a virus involved, it would have already spread I guess.
     
  10. Marni

    Marni Well-Known Member Staff Member Supporting Member

    Messages:
    13,732
    Likes Received:
    3,530
    Location:
    Santa Rosa, CA
    Check when you have new growths coming out on this plant to see that the leaves are a nice solid green.
     
    Gerrit likes this.