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 8 of 8

Cattleya Fungal Disease Racing Against Time

This is a discussion on Cattleya Fungal Disease Racing Against Time within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; Okay, why do I take this soooo seriously? I've already promised myself that I could ...

Click here to increase the font size Click here to reduce the font size
  1. #1
    Dallasgarden's Avatar
    Dallasgarden is offline Senior Member
    Real Name
    Chris Miller
    My Grow Area
    Outside 24/7.
    Favorite Orchid(s)
    Cattleya, Encyclia
    Join Date
    Jan 2008
    Location
    Dallas, Texas
    Posts
    147
    Member's Country Flag

    Default Cattleya Fungal Disease Racing Against Time

    Okay, why do I take this soooo seriously? I've already promised myself that I could buy a new orchid if this one dies, but it was a favorite! Here goes:
    I've had this unknown for years and it grew large. Every winter, if I kept it too wet it would get a fungal infection and leaves would blacken and die. On old growth as well as new. So, I kept it in lava rock in a clay pot to keep it dry. This winter, it got too wet and several leaves blackened, so I decided about 4 weeks ago to split it into three parts and put in small containers with better circulation. I kept two outside and one very weak piece inside under grow lights. Outside pieces got tons of new roots very quickly. Inside piece, not so great. Dallas got about 10 straight days of rain about two weeks ago and the two outside pieces suddenly showed many spots of rot. I cut away anything with fungal and now only have a few pieces. I ordered Physan 20 but it's not here yet, and if you look at the picture this rot on my new growth flared in the last two days! Physan should be here in the next day or two, but perhaps it's too late...question. Does fungal infection stay inside of a plant? Once got it, always got it? Or can it go away. Any hope for this guy? Or should I just start shopping?
    Attached Images Attached Images  

  2. #2
    Ania's Avatar
    Ania is offline Senior Member
    Real Name
    Ania
    My Grow Area
    Sunroom
    Favorite Orchid(s)
    I like them all
    Join Date
    Apr 2006
    Gender
    Female
    Location
    Great Barrington, MA
    Posts
    432

    Default

    I don't know if fungal infection stays in the plant, but I think your plant can still recover. I would cut away the blackened part (maybe you can save the sheath) and generously apply cinnamon on the healthy leaf. It is a natural fungicide. Keep the leaves dry. That should be good until you get your Physan 20. I hope it helps.

    Ania

  3. #3
    Brutal_Dreamer's Avatar
    Brutal_Dreamer is online now 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

    I agree and put a fan on the plant so that it drys off after you water.

    It is always a good time to get a new orchid!

    Cheers,
    BD

  4. #4
    Halloamey's Avatar
    Halloamey is offline Senior Member
    Real Name
    Amey Bhide
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    Cattleya alliance
    Join Date
    Jul 2009
    Gender
    Male
    Location
    Pune, India
    Posts
    5,363
    Member's Country Flag

    Default

    Completely agree with Ania. And always sterilize your gardening tools, by dipping them in ethanol and flaming them. These instruments can act as vectors for various diseases.

  5. #5
    Dallasgarden's Avatar
    Dallasgarden is offline Senior Member
    Real Name
    Chris Miller
    My Grow Area
    Outside 24/7.
    Favorite Orchid(s)
    Cattleya, Encyclia
    Join Date
    Jan 2008
    Location
    Dallas, Texas
    Posts
    147
    Member's Country Flag

    Default

    Cut, sprinkled with cinnamon and awaiting my Phys...
    Next question: If fungal infection doesn't stay in the plant, are some Cats more prone to fungal infection? In the past, I've only cut and raised the light and less moisture, this will be the first time I used something heavy duty like Physan.

  6. #6
    Halloamey's Avatar
    Halloamey is offline Senior Member
    Real Name
    Amey Bhide
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    Cattleya alliance
    Join Date
    Jul 2009
    Gender
    Male
    Location
    Pune, India
    Posts
    5,363
    Member's Country Flag

    Default

    Yes it is a possibility. If your cattleyas are having Catt walkeriana in the pedigree and/or many lithophytic species , then they like to dry out between the watering and need periods of watering followed by periods of dryness. So constant moisture all along can be problem with some plants. whereas plants with Sophronitis coccinea in their pedigree will thrive with constant moisture.

  7. #7
    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

    I have a few Catts. outside but under a canopy we also had days of rain . In the past I had a few without protection and ran into the same thing you have . Once they were under cover it stopped . I think the problem you have is because of wet for too long .

  8. #8
    bedt's Avatar
    bedt is offline Senior Member
    Real Name
    bos
    Favorite Orchid(s)
    Encyclia, Dendrobs, Angraecums
    Join Date
    May 2009
    Location
    Wigan - northwest England
    Posts
    182
    Member's Country Flag

    Default

    Hi Chris, please keep us posted as to how things progress and good luck!

Similar Threads

  1. Fungal?
    By ang709 in forum Orchid Ailments / The Compost Pile
    Replies: 11
    Last Post: August 10th, 2009, 07:53 PM
  2. Do you think this is a fungal problem?
    By Laura81 in forum Orchid Ailments / The Compost Pile
    Replies: 1
    Last Post: May 15th, 2009, 01:32 AM
  3. Anti Fungal while flowering?
    By dps62a in forum Phalaenopsis ('moth orchid') Information
    Replies: 7
    Last Post: May 9th, 2009, 04:25 PM
  4. Fungal or Normal cycle?
    By Phyrex in forum New Growers: Ask the Senior Members
    Replies: 9
    Last Post: June 23rd, 2008, 10:34 AM
  5. Blc. disease ID ?
    By Mark V in forum Orchid Ailments / The Compost Pile
    Replies: 3
    Last Post: December 10th, 2006, 02:36 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.