Shop Orchid Care OrchidTalk Orchid Forum Weather Station Links Nursery

Welcome to OrchidTalk Orchid Forums


The Friendliest Orchid Community on the Internet!


  •  » Learn to Repot your Orchids
  •  » Learn Orchid Care Tips and Secrets
  •  » Find the perfect Orchid for your Growing Environment
  •  » Chat with Orchid Growing Professionals

OrchidTalk - "Bringing People Together to Grow Orchids Better!"


Let us help you grow your Orchids better; Join our community today.


YES! I want to register an account for free right now!


Register or Login now to remove this advertisement.

Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Phalaenopsis virus?

This is a discussion on Phalaenopsis virus? within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; I am having a sudden outbreak of yellowish spots that in the in causes severe ...

Click here to increase the font size Click here to reduce the font size
  1. #1
    eanthony is offline Junior Member
    Real Name
    Tony
    My Grow Area
    In a Greenhouse.
    Join Date
    May 2009
    Posts
    7
    Member's Country Flag

    Default Phalaenopsis virus?

    I am having a sudden outbreak of yellowish spots that in the in causes severe cell collapse. I am trying to determine what the source of this problem is. There are 3 pics attached that seem to represent different stages. It seems to move rapidly from phal to phal but doesn't seem to effect other orchids I have. They are grown in a greenhouse, at first I thought it was water temps but I use well water (which has been tested) and have been for 3 years now with no problems til this year. I thought it may be mites but the damage only shows on top of leaves, atleast in early stages. I heard it maybe a new "potyvirus" from taiwan which could make since because those plants first showing signs where imported from taiwan, although others that are infected now are not from taiwan. Does anyone have any thoughts on this... Thanks-Tony
    Attached Images Attached Images    

  2. #2
    cindiras's Avatar
    cindiras is offline Senior Member
    Real Name
    Cindi
    My Grow Area
    Under Lights
    Favorite Orchid(s)
    Catts
    Join Date
    Nov 2007
    Location
    Central Iowa
    Posts
    1,766
    Member's Country Flag

    Default

    Keep all your phals seperated from your other orchids. I think you better fet a virus test done.

  3. #3
    Real Name
    Suzie
    My Grow Area
    On a Windowsill.
    Join Date
    Jul 2008
    Location
    Scottsdale, Arizona
    Posts
    36
    Member's Country Flag

    Default

    I would take anything with any symptoms OUT of the greenhouse phals or whatnot just to be safe... looks like one of those microfungus things that spreads like wildfire from plant to plant-
    Is there any contact from plant to plant, like water?

  4. #4
    Brutal_Dreamer's Avatar
    Brutal_Dreamer is offline Dreaming with my eyes open...
    Real Name
    Bruce Brown
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    Cattleyas & Slippers
    Join Date
    Mar 2003
    Gender
    Male
    Location
    Arkansas
    Posts
    34,003
    Member's Country Flag

    Default

    That looks terrible. My first guess is cold water too, but if that is not what is causing this, then remove all of the infected plants to a isolated location away from your healthy plants. Contact Critter Creek Labs and get a virus test done to determine if your phals need to be destroyed or if there is in fact some other cause beyond virus. Sorry for your trouble. I hope it is not virus.

    Cheers,
    BD

  5. #5
    Gin's Avatar
    Gin
    Gin is offline Senior Member
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    All types
    Join Date
    Sep 2004
    Location
    Missouri
    Posts
    4,831
    Member's Country Flag

    Default

    It looks suspicious . I have heard about that virus . I would isolate and test asap. Would the virus only affect one leaf ? in the picture the other leaf looks ok . did it show symptoms later ? Have you sprayed with anything lately ? I am very sorry for the trouble .. Gin

  6. #6
    smwboxer is offline Senior Member
    Real Name
    Stephen
    My Grow Area
    Under Lights
    Favorite Orchid(s)
    Rhynch/Brassavola/Angc
    Join Date
    Aug 2007
    Location
    NYC
    Posts
    727
    Member's Country Flag

    Default

    Does not really look like a virus to me. Virus' usually start to show their affects over time. If this happened suddenly, I'd be more inclined to guess bacterial, fungal or maybe even pest.

  7. #7
    eanthony is offline Junior Member
    Real Name
    Tony
    My Grow Area
    In a Greenhouse.
    Join Date
    May 2009
    Posts
    7
    Member's Country Flag

    Default Microfungus?

    Quote Originally Posted by Cookiemonster View Post
    I would take anything with any symptoms OUT of the greenhouse phals or whatnot just to be safe... looks like one of those microfungus things that spreads like wildfire from plant to plant-
    Is there any contact from plant to plant, like water?
    Interesting idea... It would explain the rapid spread of this disease, as compared to a virus, which I have never seen a virus spread this quickly anyway.I have apx. 200 phals, first noticed this problem about a month ago, now I know of atleast 40 infected phals(and counting)... I have been growing orchids for 20 years and never seen this before, Contact with water, maybe in some cases, but I have notice it showing up on phals that where in a totally differant place (being shown and away from other phals infected).Thank you for your reply-Tony

  8. #8
    eanthony is offline Junior Member
    Real Name
    Tony
    My Grow Area
    In a Greenhouse.
    Join Date
    May 2009
    Posts
    7
    Member's Country Flag

    Default Cold water

    Quote Originally Posted by Brutal_Dreamer View Post
    That looks terrible. My first guess is cold water too, but if that is not what is causing this, then remove all of the infected plants to a isolated location away from your healthy plants. Contact Critter Creek Labs and get a virus test done to determine if your phals need to be destroyed or if there is in fact some other cause beyond virus. Sorry for your trouble. I hope it is not virus.

    Cheers,
    BD
    Yea it even looks worse in person,lol. Cold water was my first guess too, but I am using well water and in this location have for the past 3 years. At this point I am not ruling anything out. If this is a virus, like someone advised me it appears, according to them it would be a new virus that is not tested for in the U.S. The theory is that inspections on orchids coming from Taiwan where lifted and they are sending orchids over that questionable, thinking there going to end up in box stores anyway. I do know that I bloomed a cattleya (well its in bloom right now) that is virused,it came from a box store, and it is a first time bloomer! Yet this disease here seems to be moving too quickly to be virus, Thanks for your opinion- Tony
    Last edited by eanthony; May 25th, 2009 at 06:07 PM. Reason: left out part of a sentence

  9. #9
    eanthony is offline Junior Member
    Real Name
    Tony
    My Grow Area
    In a Greenhouse.
    Join Date
    May 2009
    Posts
    7
    Member's Country Flag

    Default fungal...

    Quote Originally Posted by smwboxer View Post
    Does not really look like a virus to me. Virus' usually start to show their affects over time. If this happened suddenly, I'd be more inclined to guess bacterial, fungal or maybe even pest.
    I am staring to think it is more related to fungus, or maybe micro-fungus? Are there any treatments for fungus problems or is it like trying to kill mushrooms? pest I have almost rule out pest, there are no signs of mealybugs or scale, could thrips do this kind of damage? guess I could go check after dark with a "black light". I thought about mites but the damage starts on top, and not under leaves...but like I said I am not ruling anything out, thank you for your reply-Tony

  10. #10
    Lambert's Avatar
    Lambert is offline Senior Member
    Real Name
    Laurent Lambert
    My Grow Area
    Windowsill
    Favorite Orchid(s)
    Laelia & Encyclia
    Join Date
    Mar 2008
    Location
    Brooklyn, NY
    Posts
    1,723
    Member's Country Flag

    Default

    Here are the links to 2 accounts from growers who seem to be experiencing the same thing on their phals.
    fungus attack - stage one on Flickr - Photo Sharing!
    problems
    Last edited by Lambert; May 25th, 2009 at 09:06 PM.

Page 1 of 2 12 LastLast

Similar Threads

  1. A virus?
    By 0rch1dman in forum Orchid Ailments / The Compost Pile
    Replies: 8
    Last Post: June 28th, 2012, 06:05 PM
  2. virus?
    By brit6v in forum General Orchid Culture
    Replies: 2
    Last Post: June 28th, 2009, 05:42 PM
  3. Phalaenopsis Ruth Larkin (Phalaenopsis Golden Gift x Phalaenopsis Brother Purple)
    By Brutal_Dreamer in forum Phalaenopsis, Oncidium, & Intergenerics IN BLOOM
    Replies: 5
    Last Post: May 23rd, 2009, 05:13 PM
  4. Virus???
    By Tanya in forum Orchid Ailments / The Compost Pile
    Replies: 7
    Last Post: May 26th, 2005, 09:28 PM
  5. Virus?
    By OrchidTraci in forum General Orchid Culture
    Replies: 20
    Last Post: May 21st, 2004, 02:22 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
OrchidTalk --An Orchid Growers Discussion Forum brought to you by River Valley Orchidworks. A World Community where orchid beginners and experts talk about orchids and share tips on their care, cultivation, and propagation.