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 2 of 2

Thread: Do you think this is a fungal problem?

Click here to increase the font size Click here to reduce the font size
  1. #1
    Real Name
    My Grow Area
    Favorite Orchid(s)
    Join Date
    Sep 2007
    Dayton, Ohio
    Member's Country Flag

    Default Do you think this is a fungal problem?

    I've had this "problem" dendrobium NOID for about 2 years now. It seems to have some kind of disease, which I think may be fungal, for over a year. It has some black spots on the old leaves. Every time it puts out a new cane, it seems like all of the leaves or most of the leaves end up falling off. So far the newest cane still has all its leaves. It keeps getting these little translucent round spots on the new growths that eventually turn brown, as seen in the photo. The tips of the leaves are also brown. I have been spraying it every couple of weeks with Physan solution to try to get rid of this problem, but it hasn't stopped it. Roots seem to be OK, and it has a fan going about 8 feet away for air flow.
    Attached Images Attached Images  

  2. #2
    Real Name
    Bruce Brown
    My Grow Area
    Favorite Orchid(s)
    Cattleyas & Slippers
    Join Date
    Mar 2003
    Member's Country Flag


    I don't think that is fungal, but others may disagree. The brown spots look like burn to me. The leaf tips turning brown could be from fertilizer burn. Have you repotted this orchid? Do you flush the pot out with pure water often? The yellow leaves could be caused by the roots staying too wet. Dendrobiums like to dry out between waterings. Let the medium get completely dry and the water.
    Good luck to you.


Similar Threads

  1. Worm Tea (All Natural Fertilizer, Anti-Fungal, and Pesticide)
    By douglas in forum General Orchid Culture
    Replies: 9
    Last Post: June 7th, 2011, 09:27 PM
  2. Cattleya Fungal Disease Racing Against Time
    By Dallasgarden in forum Orchid Ailments / The Compost Pile
    Replies: 7
    Last Post: August 15th, 2009, 07:06 AM
  3. Fungal?
    By ang709 in forum Orchid Ailments / The Compost Pile
    Replies: 11
    Last Post: August 10th, 2009, 07:53 PM
  4. Anti Fungal while flowering?
    By dps62a in forum Phalaenopsis ('moth orchid') Information
    Replies: 7
    Last Post: May 9th, 2009, 04:25 PM
  5. Fungal or Normal cycle?
    By Phyrex in forum New Growers: Ask the Senior Members
    Replies: 9
    Last Post: June 23rd, 2008, 10:34 AM

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.