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.

Results 1 to 9 of 9
Like Tree3Likes
  • 1 Post By PaphMadMan
  • 2 Post By Dorsetman

Cattleya maxima alba - retrieved from the nursery and what is this?

This is a discussion on Cattleya maxima alba - retrieved from the nursery and what is this? within the **NOT IN BLOOM** All Genera forums, part of the Orchid Photography category; So, I visited my orchids at the nursery where they've been boarding since October, and ...

Click here to increase the font size Click here to reduce the font size
  1. #1
    mauraec's Avatar
    mauraec is offline Senior Member
    Real Name
    Maura Caffrey
    My Grow Area
    Outside 24/7
    Favorite Orchid(s)
    Paphiopedilum lowii
    Join Date
    May 2011
    Gender
    Female
    Location
    Englewood, FL
    Posts
    3,092
    Member's Country Flag

    Default Cattleya maxima alba - retrieved from the nursery and what is this?


    So, I visited my orchids at the nursery where they've been boarding since October, and a few were in bloom, a few others clearly HAD bloomed beautifully, and for the most part, they're in good shape. With some notable exceptions and this is one of them:

    This is a C. maxima v. alba that has such a pedigree that it cost much more than the average - it's from the Orchid show last year, and, obviously hasn't bloomed yet.

    It looks really bad, but there's some new growth and some beautiful green new roots pushing out.

    What is wrong with this plant? Should I toss it? Is it salvageable? If so, How? Do I cut all the affected leaves off?

    I NEED SOME ADVICE!!!!

    Name:  C. max alba 1 4.19.jpg
Views: 1556
Size:  125.9 KB

    Name:  C. max alba 2 4.19.jpg
Views: 590
Size:  111.9 KB

    Name:  C. max alba 3 4.19.jpg
Views: 415
Size:  97.0 KBName:  C. max alba 4 4.19.jpg
Views: 1319
Size:  77.5 KB


  2. #2
    mauraec's Avatar
    mauraec is offline Senior Member
    Real Name
    Maura Caffrey
    My Grow Area
    Outside 24/7
    Favorite Orchid(s)
    Paphiopedilum lowii
    Join Date
    May 2011
    Gender
    Female
    Location
    Englewood, FL
    Posts
    3,092
    Member's Country Flag

    Default

    Name:  C. max alba 5 4.19.jpg
Views: 513
Size:  123.8 KBName:  C. max alba 6 4.19.jpg
Views: 356
Size:  114.5 KB2 more shots -

  3. #3
    tucker85's Avatar
    tucker85 is offline Senior Member
    Real Name
    Jeff Tucker
    My Grow Area
    Porch/Patio.
    Favorite Orchid(s)
    Cattleyas, Phalaenopsis, Vanda
    Join Date
    Jan 2011
    Gender
    Male
    Location
    Plantation, Florida
    Posts
    2,446
    Member's Country Flag

    Default

    I've never seen anything quite like that. The indented leaves are probably cell collapse secondary to some bacteria or fungus problem. For starters I would spray the plant once a week with Physan 20. It has anti-bacterial and anti-fungal properties. Beyond that, I would isolate it and give it some good growing conditions and see what happens. There is a condition called mesophyll cell collapse that can be caused by using very cold water on the plants or a sudden drop in temperature. There's a chance it might just be that rather than any disease process. Good luck.

  4. #4
    mauraec's Avatar
    mauraec is offline Senior Member
    Real Name
    Maura Caffrey
    My Grow Area
    Outside 24/7
    Favorite Orchid(s)
    Paphiopedilum lowii
    Join Date
    May 2011
    Gender
    Female
    Location
    Englewood, FL
    Posts
    3,092
    Member's Country Flag

    Default

    Thanks, Jeff - I've actually had it soaking in a dilute solution of Physan for the last 20 minutes. I hadn't ever seen anything that looked like this, either. I don't mind doing the research - and the treatment is probably much the same no matter what it is - unless someone flags it as a virus threat - in which case it goes into the trash.

  5. #5
    glenyorl1 is offline Senior Member
    Real Name
    Glenn
    My Grow Area
    Windowsill
    Favorite Orchid(s)
    n/a
    Join Date
    Apr 2010
    Gender
    Male
    Location
    Florida
    Posts
    205
    Member's Country Flag

    Default

    I will go with Jeff. It also looks salvageable. Focus on the new growth

  6. #6
    PaphMadMan is offline Senior Member
    Real Name
    Kirk
    My Grow Area
    Under Lights
    Favorite Orchid(s)
    Paphiopedilum
    Join Date
    Sep 2010
    Location
    Madison, Wisconsin
    Posts
    1,477
    Member's Country Flag

    Default

    Mesophyll collapse from cold stress was my first impression, and new growth should be healthy. Otherwise bacterial or fungal involvement should continue to spread. Could be the kind of viral damage that only shows up when the plant is stressed, like by cold. Isolate and watch it closely and give it some time. Physan should at least help prevent something moving in and growing on the damaged tissue.

  7. #7
    mauraec's Avatar
    mauraec is offline Senior Member
    Real Name
    Maura Caffrey
    My Grow Area
    Outside 24/7
    Favorite Orchid(s)
    Paphiopedilum lowii
    Join Date
    May 2011
    Gender
    Female
    Location
    Englewood, FL
    Posts
    3,092
    Member's Country Flag

    Default

    Thanks, guys - got it, and I'm going to repot it in fresh medium while I'm at it -- I really hope it makes it.

  8. #8
    Dorsetman's Avatar
    Dorsetman is offline Senior Member
    Real Name
    Geoff Hands
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    Cattleya ?
    Join Date
    Oct 2010
    Location
    England, South coast.
    Posts
    3,247
    Member's Country Flag

    Default

    I am sure it is cultural, not viral. Looks like cold damage to me.
    But patience will be necessary ; I have an awarded plant of Paph Susan Booth which got badly frosted in 1996 I think it was, but three or four smallish growths survived, and I have been growing it on ever since, expecting and hoping that it will get back to flowering condition, but it has not made it yet.
    How long should I carry on the struggle ? Maybe I'll I'll give it another few years... but if I happen to see the same thing on offer, I shall buy and quietly dump this one. The point is that the plant is ( at present) irreplacable.
    If it were just another hybrid I would have recycled it on the compost heap years ago ( not that orchids do recycle ) I can dig out the garden compost heap after a couple of years and find orchid plants which don't seem to have even started to decompose !

  9. #9
    mauraec's Avatar
    mauraec is offline Senior Member
    Real Name
    Maura Caffrey
    My Grow Area
    Outside 24/7
    Favorite Orchid(s)
    Paphiopedilum lowii
    Join Date
    May 2011
    Gender
    Female
    Location
    Englewood, FL
    Posts
    3,092
    Member's Country Flag

    Default

    Quote Originally Posted by Dorsetman View Post
    I am sure it is cultural, not viral. Looks like cold damage to me.
    But patience will be necessary ; I have an awarded plant of Paph Susan Booth which got badly frosted in 1996 I think it was, but three or four smallish growths survived, and I have been growing it on ever since, expecting and hoping that it will get back to flowering condition, but it has not made it yet.
    How long should I carry on the struggle ? Maybe I'll I'll give it another few years... but if I happen to see the same thing on offer, I shall buy and quietly dump this one. The point is that the plant is ( at present) irreplacable.
    If it were just another hybrid I would have recycled it on the compost heap years ago ( not that orchids do recycle ) I can dig out the garden compost heap after a couple of years and find orchid plants which don't seem to have even started to decompose !
    Trying to read between your lines (perhaps not a wide thing to do...), I'm wondering if C. maxima alba is efficiently unusual for all this work. Any thoughts?

Similar Threads

  1. Cattleya Maxima
    By Gurj in forum **NOT IN BLOOM** All Genera
    Replies: 5
    Last Post: August 13th, 2012, 05:29 PM
  2. Cattleya maxima
    By jeffrey6115 in forum Cattleyas, Vandas, Dendrobiums IN BLOOM
    Replies: 16
    Last Post: October 16th, 2011, 06:52 PM
  3. Cattleya Maikai x Cattleya Maxima 'pearly shell'
    By Cjcorner in forum Cattleyas, Vandas, Dendrobiums IN BLOOM
    Replies: 10
    Last Post: January 10th, 2011, 11:47 AM
  4. Cattleya Maxima
    By Cjcorner in forum Cattleyas, Vandas, Dendrobiums IN BLOOM
    Replies: 8
    Last Post: October 21st, 2010, 08:56 AM
  5. Cattleya maxima
    By wetfeet101b in forum Cattleyas, Vandas, Dendrobiums IN BLOOM
    Replies: 16
    Last Post: December 2nd, 2009, 06:07 PM

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.