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 5 of 5
Like Tree2Likes
  • 1 Post By Carolla
  • 1 Post By kspalding

Oncidium leaves turning yellow.. and has a spot on it.

This is a discussion on Oncidium leaves turning yellow.. and has a spot on it. within the Phalaenopsis, Oncidium, & Intergenerics IN BLOOM forums, part of the Orchid Photography category; My Oncidium has leaves turining yellow... recently repotted it and put is outside for the ...

Click here to increase the font size Click here to reduce the font size
  1. #1
    chhenry is offline Junior Member
    Real Name
    Cindi
    My Grow Area
    Under Lights
    Join Date
    Feb 2014
    Gender
    Female
    Location
    Western Oregon
    Posts
    11
    Member's Country Flag

    Unhappy Oncidium leaves turning yellow.. and has a spot on it.

    My Oncidium has leaves turining yellow... recently repotted it and put is outside for the summer. I live in Western Oregon. Pretty mild.

    The spot is like an eye of sorts. I will try to get picture up but the process seems long and I am not too much of a techy.... any "simple" hints on posting a picture?

  2. #2
    Carolla's Avatar
    Carolla is offline Senior Member
    Real Name
    Carol
    My Grow Area
    Under Lights
    Favorite Orchid(s)
    Phals, Catts, Onc. Alliance
    Join Date
    Dec 2012
    Gender
    Female
    Location
    Eastern WA State, USA
    Posts
    1,503

    Default

    Two things come to mind with the yellow leaves - either too much sun or damage to the roots causing die off. Too much sun seems most likely, since you moved it outside it might be a bit stressed? However, don't change too much until others with more experience with Oncidiums weigh in. I do know that spots on their leaves are not uncommon, I've had quite a bit of trouble with that myself. I find I don't water mine enough (its dry in Eastern WA) and, even though my humidity is low, I guess my air flow isn't as good as it ought to be. I had to spray them with Physan 20 to stop further damage. It seems to be working, time to spray again soon I think.

    As far as pictures, be sure the pixel dimensions are no more than 700 pixels either way. I use the preview function of windows and tell it to "open" the picture with Paint. There is a resize button in Paint that I can click a spot for "pixel", then I enter 700 in the biggest number and "ok". That takes care of the size problem for me. I use "save as" and rename it so I don't change the original. In fact I made a folder just for pictures to upload, where the resized ones go.

    From the reply page, where I am now, I click "Go Advanced". It has lots of options, I scroll down quite a ways to "Manage Attachments" and click that. That makes another window open (sometimes it is not on top, so keep that in mind). There is an "add files" button, click that. You should see a small "browse" button, that allows you to browse your computer for the pictures you just resized. If you want to add more pictures, there is a plus sign right next to browse to get more pictures. Once you upload them, they will add themselves to your post and be available should you want to use them again later too (by drag and drop).

    I know this isn't that simple, its not a simple process unfortunately. You do get used to it though and its very helpful to be able to post pictures when you have a problem and fun to show off your blooms!

  3. #3
    chhenry is offline Junior Member
    Real Name
    Cindi
    My Grow Area
    Under Lights
    Join Date
    Feb 2014
    Gender
    Female
    Location
    Western Oregon
    Posts
    11
    Member's Country Flag

    Default

    Thanks Carol, I had read they liked being outside.. but maybe the stress of the repotting and going outside is too much.

  4. #4
    Carolla's Avatar
    Carolla is offline Senior Member
    Real Name
    Carol
    My Grow Area
    Under Lights
    Favorite Orchid(s)
    Phals, Catts, Onc. Alliance
    Join Date
    Dec 2012
    Gender
    Female
    Location
    Eastern WA State, USA
    Posts
    1,503

    Default

    I haven't tried my Oncidiums outside - its over 100 degrees right now at 9 am! I have trouble keeping them well enough watered inside, I'm sure they'd fry in a day.

  5. #5
    kspalding's Avatar
    kspalding is offline Senior Member
    Real Name
    Kim
    My Grow Area
    Windowsill
    Favorite Orchid(s)
    Cattaleya and Intergeneric
    Join Date
    Nov 2013
    Gender
    Female
    Location
    Florida
    Posts
    982
    Member's Country Flag

    Default

    I've noticed mine does that alot during its regrowth phase. The old stalks lose a few leaves but it has not seemed to damage my onc. hybrid in the least. If yours isn't growing new growth then I agree that the environment may be the cause. Is the spot red, black, brown or yellow ringed?

Similar Threads

  1. protocorms are turning yellow???
    By mykidschids in forum Flasking Equipment & Technique
    Replies: 5
    Last Post: February 5th, 2012, 12:06 AM
  2. Oncidium with Bright Yellow Leaves dying
    By wiacomm in forum Oncidium/ Intergeneric Information
    Replies: 3
    Last Post: January 19th, 2011, 09:13 AM
  3. Need help: Orchid Leaves turning Yellow
    By pillairp in forum General Orchid Culture
    Replies: 15
    Last Post: January 25th, 2010, 12:44 PM
  4. orchid leaves are turning yellow and dropping off
    By beck in forum New Growers: Ask the Senior Members
    Replies: 5
    Last Post: June 7th, 2009, 11:42 PM
  5. Phalaenopsis leaves turning yellow - fast
    By wetfeet101b in forum Orchid Ailments / The Compost Pile
    Replies: 10
    Last Post: November 21st, 2007, 09:38 AM

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.