Visit our other forums: Gardening Forums Bonsai Forum Citrus Forum Fat Cat Forum Appraisers Forum Disney Forum Hawaii Forum Vegetarian Forum Frugal Forum

Black Spots on Cattleya - Orchid Forum Orchid Care
Orchid Forum Orchid Care
Help Support OrchidGeeks.com

70 Most Recent Posts

Go Back   Orchid Forum Orchid Care > Orchid Care > Orchid Pests and Diseases

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 01-24-2008, 08:47 AM
alexng's Avatar
Newbie
 
Join Date: Nov 2007
Location: Hong Kong
Posts: 8
alexng is on a distinguished road
Black Spots on Cattleya

I've found some black spots on the leaves of my cattleya.
What should I do?
Please give me some advice.
Thank you!



Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #2 (permalink)  
Old 01-24-2008, 09:28 AM
rmt135's Avatar
Member
 
Join Date: Dec 2007
Location: Singapore
Posts: 251
rmt135 is on a distinguished road
Maybe sun burn & lack of water.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #3 (permalink)  
Old 01-24-2008, 09:35 AM
articuno75's Avatar
Super Moderator Photo Sharing and Video Hosting at Photobucket
Photo Sharing and Video Hosting at PhotobucketPhoto Sharing and Video Hosting at PhotobucketPhoto Sharing and Video Hosting at PhotobucketPhoto Sharing and Video Hosting at Photobucket
 
Join Date: Oct 2007
Location: Portland, Indiana
Posts: 2,867
articuno75 is on a distinguished road
That looks like the start of fungus. You can treat it with a fungicide or cut it and treat with peroxide and cinnamon. Increase your air circulation. Be sure to sterilize your equiptment.
__________________
Jenny~
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #4 (permalink)  
Old 01-24-2008, 11:06 AM
brookn's Avatar
Executive Senior Member Photo Sharing and Video Hosting at Photobucket
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Apr 2007
Location: Missouri 5b/6a
Posts: 1,471
brookn is on a distinguished road
That looks like it could be mite damage, and has caused a secondary infection. I would cut it, and treat accordingly.
__________________

"If nature ever showed her playfulness in the formation of plants, this is visible in the most striking way among the orchids. They take on the form of little birds, of lizards, of insects, a man, a woman, sometimes like a clown who excites our laughter. They represent the image of a lazy tortoise, a melancholy toad, an agile, ever-chattering monkey. Nature has formed orchid flowers in such a way that, unless they make us laugh, they surely excite our greatest admiration." Jacob Breynius
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #5 (permalink)  
Old 01-24-2008, 07:10 PM
kmarch's Avatar
Chief Of Staff
Photo Sharing and Video Hosting at PhotobucketPhoto Sharing and Video Hosting at PhotobucketPhoto Sharing and Video Hosting at PhotobucketPhoto Sharing and Video Hosting at PhotobucketPhoto Sharing and Video Hosting at Photobucket
 
Join Date: Feb 2007
Location: Melbourne Australia
Posts: 5,021
kmarch has much to be proud ofkmarch has much to be proud ofkmarch has much to be proud ofkmarch has much to be proud ofkmarch has much to be proud ofkmarch has much to be proud ofkmarch has much to be proud ofkmarch has much to be proud of
It looks to be a bit fo bacterial or fungal spotting. I'd apply a fungicide, increase air flow, and monitor to see that they're not spreading quickly. If they do spread quickly I'd cut the spots off.
__________________
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply

Thread Tools
Display Modes

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
Bract turning black on cattleya Nancy Orchid Pests and Diseases 8 01-08-2008 09:35 AM
black spots on leaves??? magflower Newbie Questions 4 10-17-2007 09:12 AM
Dendrobium Emma White- black spots + yellow leaf Stefka Newbie Questions 45 09-25-2007 02:50 PM
Black spots on phal Sherrie Orchid Pests and Diseases 4 02-05-2007 07:35 PM
Phal. has evil black spots on leaves...Help! lmgarret Newbie Questions 1 01-30-2007 12:13 AM



plants online


Free Vote Caster from Bravenet.com Free Vote Caster from Bravenet.com


Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.1.0
Orchid Forum
Find the Perfect Gift on eBay!