Login
User Name
Password   


Registration is FREE. Click to become a member of OrchidBoard community
(You're NOT logged in)

menu menu



Sponsor
Donate Now
and become
Forum Supporter.


Many perks!
<...more...>


Sponsor
 

Google


Fauna Top Sites
Members O.C.D. Search Today's Posts Mark Forums Read
LOG IN/REGISTER TO CLOSE THIS ADVERTISEMENT
  #1  
Unread 01-27-2013, 04:14 PM
Senior Member
 

Join Date: Jul 2012
Posts: 198
Default Spots on Dendrobium Leaves

I have been seeing spots on some leaves. A couple of them turned yellow. I dunked the pot in a solution of physan 20 for 20 minutes, and sprayed the leaves with the same thing. Should I leave the plant away from the rest? Please advise. Thanks!


Sent from my Nexus 4 using Tapatalk 2
Reply With Quote
  #2  
Unread 01-27-2013, 09:53 PM
Senior Member
 

Join Date: Nov 2011
Posts: 5,470
Default

Three of my dendrobium hybrid suffered this same thing last year.
I searched but couldn't find out what it is.
Whatever it is, those dark spots or rings will spread all over and cause the leaves yellow and drop.

I sprayed with some chemical but it doesn't seem to work.

I removed affected leaves, then those rings would come back on healthy looking leaves. very persistent.

so I ended up dumping all three in fear of losing my other dendrobiums or other orchids. I have many dendrobiums, so I had to let go of bad ones.

Since then, no such outbreak and I really hope I don't have to face this mytery ring disease again whatever it is.

I would put the affected plants away away from everyone else. removed the affect leaves and see if they come back on the healthy leaves.
If they do, then it's best to discard the plants.

Last edited by NYCorchidman; 01-27-2013 at 09:56 PM..
Reply With Quote
  #3  
Unread 01-27-2013, 10:58 PM
Senior Member
 

Join Date: Jul 2012
Posts: 198
Default

Thanks! I have moved the plant away from the rest of the orchids. Will remove the leaves, and see how it goes!
Reply With Quote
  #4  
Unread 01-30-2013, 12:14 AM
Senior Member
 

Join Date: Nov 2011
Posts: 5,470
Default

I wish you and your plants the best luck!
Reply With Quote
  #5  
Unread 01-30-2013, 01:17 PM
Senior Member
 

Join Date: Jul 2012
Posts: 198
Default

Thanks a lot! I need all the luck just to keep the other dendrobiums from getting this awful disease.
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
spots on zygopetalum leaves silken Oncidium/Odontoglossum Alliance 14 09-19-2011 11:30 AM
Dry brown spots on my green Coleus leaves AmberVon Off Topic - Totally 0 08-12-2011 02:14 PM
Spots on my Phalaenopsis leaves :( onlymemyselfandi Hybrids 6 01-27-2009 04:11 PM
Dendrobium leaves turning yellow & falling off KCR Beginner Discussion 1 11-08-2008 09:36 PM
Oncidium "Bobcat" with black spots on leaves Adela the beginner Pests & Diseases 4 08-21-2008 10:49 AM

All times are GMT -4. The time now is 07:04 AM.

© 2007 OrchidBoard.com

Clubs, ShowCase vBulletin Plugins by Drive Thru Online, Inc.

SEO by vBSEO 3.6.0