Orchid Care OrchidTalk Orchid Forum 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 4 of 4

Thread: orchid dendrobium leaves have black or brown spots. Help

Click here to increase the font size Click here to reduce the font size
  1. #1
    Join Date
    Sep 2020
    Gender
    Female
    Posts
    2

    Default orchid dendrobium leaves have black or brown spots. Help

    Hi Everybody,

    I need help on my dendrobium.
    The leaves have some black or brown spots. Some spots are bumpy. See the attached pictures. Don't know what is wrong. Anybody know what is the problem ? How I can fix it. ?

    Thank you
    Attached Images Attached Images    

  2. #2
    Real Name
    Ray Barkalow
    My Grow Area
    Porch/Patio.
    Join Date
    Oct 2012
    Location
    Oak Island NC
    Posts
    1,971

    Default

    My take - right or wrong - is that the spots are what’s left of a past pseudomonas infection, due to water droplets being left on the plant that became incubators. It is spread easily by water droplets.

    If you got the plant that way, it may not spread, but I recommend a Physan spray of the plant and the growing area.

  3. #3
    Join Date
    Sep 2020
    Gender
    Female
    Posts
    2

    Default

    Thank you Ray!

  4. #4
    Real Name
    Bruce Brown
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    Cattleyas & Slippers
    Join Date
    Mar 2003
    Gender
    Male
    Location
    Arkansas
    Posts
    34,696
    Member's Country Flag

    Default

    Quote Originally Posted by raybark View Post
    My take - right or wrong - is that the spots are what’s left of a past pseudomonas infection, due to water droplets being left on the plant that became incubators. It is spread easily by water droplets.

    If you got the plant that way, it may not spread, but I recommend a Physan spray of the plant and the growing area.
    I agree. Make sure you have a fan to help dry off your dendrobiums after you water too.

    Cheers,
    BD

Similar Threads

  1. Enc. x Epi. brown spots on underside of leaves
    By redrebel in forum Orchid Ailments / The Compost Pile
    Replies: 7
    Last Post: January 25th, 2017, 07:23 PM
  2. 2 small brown spots on leaves of phal.
    By michele17 in forum Orchid Ailments / The Compost Pile
    Replies: 3
    Last Post: January 12th, 2013, 04:40 AM
  3. Cattleya help with black spots and black tips on leaves
    By rinapedia in forum Cattleya Information
    Replies: 4
    Last Post: March 6th, 2012, 12:03 AM
  4. Neo- brown spots on leaves
    By stacey8989 in forum Orchid Ailments / The Compost Pile
    Replies: 18
    Last Post: March 31st, 2010, 08:23 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.