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 7 of 7

Den. normal leaf drop or pests?

This is a discussion on Den. normal leaf drop or pests? within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; I re-potted this Den. a few weeks ago. The new cane appears normal and the ...

Click here to increase the font size Click here to reduce the font size
  1. #1
    orchid lady's Avatar
    orchid lady is offline Senior Member
    Real Name
    Marissa
    My Grow Area
    Outside 24/7
    Favorite Orchid(s)
    Cymbidiums
    Join Date
    Jun 2008
    Location
    Long Beach, CA
    Posts
    516
    Member's Country Flag

    Default Den. normal leaf drop or pests?

    I re-potted this Den. a few weeks ago. The new cane appears normal and the other older cane is also going thru the normal leaf drop. I can't say it's sunburn because it's currently in my living room.
    Attached Images Attached Images     

  2. #2
    wetfeet101b's Avatar
    wetfeet101b is offline It's not dead! It's just permanently dormant.
    Real Name
    John
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    Cattleya, Cymbidium
    Join Date
    Jun 2007
    Location
    Riverside, CA
    Posts
    1,332
    Member's Country Flag

    Default

    Those spots appear to be fungal or bacterial infections.
    Do the leaves stay wet indoors?

  3. #3
    orchid lady's Avatar
    orchid lady is offline Senior Member
    Real Name
    Marissa
    My Grow Area
    Outside 24/7
    Favorite Orchid(s)
    Cymbidiums
    Join Date
    Jun 2008
    Location
    Long Beach, CA
    Posts
    516
    Member's Country Flag

    Default

    No, and I make sure the leaves don't get wet when I water them. Can I spray the leaves with Physan 20? I don't have any fungicide.

    Thanks,

  4. #4
    clintdawley's Avatar
    clintdawley is offline Wrapped in metal..wrapped in ivy...
    Real Name
    Clint M. Dawley
    Favorite Orchid(s)
    Cattleya Alliance
    Join Date
    Jun 2005
    Location
    Fort Worth, Texas
    Posts
    2,743
    Member's Country Flag

    Default

    Physan is fine. That is definitely fungal.

  5. #5
    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

    I think it needs a good spraying to make sure it doesn't spread.

    Cheers,
    BD

  6. #6
    Real Name
    Rodney Draper
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    Dendrobium (Aussie)
    Join Date
    Jan 2008
    Location
    Auckland, New Zealand
    Posts
    44
    Member's Country Flag

    Default

    Is there any air movement around the plant, as stagnant air can also cause fungal problems.

    It might even be a better idea to remove the infected leaves and then spray the plant to ensure there is no further infection as a few leaves lost is better than the whole plant.

    Cheers
    Rod

  7. #7
    Becky15349's Avatar
    Becky15349 is offline Senior Member
    Real Name
    Rebecca Luce
    My Grow Area
    Windowsill
    Favorite Orchid(s)
    Cattleya!!
    Join Date
    Mar 2007
    Location
    Chicago, IL
    Posts
    1,790
    Member's Country Flag

    Default

    Good luck with this one...the pathologic experts have all chimed in already, so you know what you have on your hands. Get the fungal buggers!!

Similar Threads

  1. Dendrobium phal -normal leaf discoloration?
    By nicki in forum Genus Specific
    Replies: 4
    Last Post: April 13th, 2009, 09:03 AM
  2. Phal -normal leaf drop?
    By nicki in forum Genus Specific
    Replies: 2
    Last Post: April 10th, 2009, 11:35 AM
  3. Leaf drop stimuli??
    By Mark V in forum General Orchid Culture
    Replies: 8
    Last Post: September 8th, 2006, 12:23 AM
  4. leaf on phal pulchra....is this "normal"?
    By Cinderella in forum Orchid Ailments / The Compost Pile
    Replies: 2
    Last Post: September 30th, 2005, 02:23 PM
  5. pests
    By Lore in forum Orchid Ailments / The Compost Pile
    Replies: 7
    Last Post: July 25th, 2005, 02:38 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.