Phalaenopsis: leaf disease? Wet roots?
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.

Phalaenopsis: leaf disease? Wet roots?
Many perks!
<...more...>


Sponsor
 

Google


Fauna Top Sites
LOG IN/REGISTER TO CLOSE THIS ADVERTISEMENT
  #1  
Old 01-03-2012, 05:03 PM
LKint LKint is offline
Jr. Member
 

Join Date: Feb 2009
Location: Hudson Valley near NYC
Posts: 9
Phalaenopsis: leaf disease? Wet roots? Male
Unhappy Phalaenopsis: leaf disease? Wet roots?

My supermarket phalaenopsis bloomed last year in the summer and I left it in the bark mix and aerated plastic pot within an undrained ceramic. [I forgot to take it out!] New flower spikes appeared over the fall and I moved it from behind a lacy curtain by the window to a table 5' from the window with some partial full afternoon sun in the winter. Yesterday I did my weekly light watering [without first checking for dampness] with a dilute "Miracal Grow". Today I noticed one of the three flowers only about a week old had dropped.
I inspected the plant and found a leaf with a major blemish and a second leaf with a blemish starting. I cut out the two bad sections. First is that the correct action, or should whole diseased leaves be cut off?
The photo shows the damages. Can you diagnose?
Then I saw that the roots had driven down through the plastic pot's bottom drainage holes and were in 1/2" of water. When I cut off those bottom roots I could lift the plant out for repotting and found most of the bottom 2" of "stem" and roots were rotting in the damp bark. I sawed off the bottom 2" and some other rotted roots and repotted in a wider aerated pot in the sphagnum moss mix I bought. Is the plant on its way out after such radical surgery? If not, what care is needed during this recovery stage. [It has two flower stalks with buds.]
Attached Thumbnails
Phalaenopsis: leaf disease? Wet roots?-diseased-orchid-leaf-sm-1772-jpg  

Last edited by LKint; 01-03-2012 at 05:06 PM..
Reply With Quote
  #2  
Old 01-03-2012, 08:08 PM
calypsoB calypsoB is offline
Senior Member
 

Join Date: Apr 2011
Zone: 7a
Posts: 231
Phalaenopsis: leaf disease? Wet roots?
Default

Do you have a floorboard heat below the window? Were those leave touching the ceramic pot at all? Was that leaf touch the window?
Reply With Quote
  #3  
Old 01-03-2012, 11:08 PM
Zoi2 Zoi2 is offline
Senior Member
 

Join Date: Jan 2009
Zone: 5a
Member of:OSGKC
Location: Kansas City, MO
Age: 61
Posts: 4,773
Default

That leaf is not diseased, it's sunburned.
Joann
Reply With Quote
  #4  
Old 01-04-2012, 03:17 AM
camille1585's Avatar
camille1585 camille1585 is offline
Administrator
 

Join Date: Oct 2007
Location: middle of the Netherlands
Posts: 11,913
Default

I agree, that's sunburn. Winter sun can be deceptive, and will still burn a plant that has not been progressively adjusted to the light.

As to the plant, it shouldn't suffer too much from the 'surgery', as long as there are plenty of other roots left, which you don't mention.
__________________
Camille

Completely orchid obsessed and loving every minute of it....

My Orchid Photos
Reply With Quote
  #5  
Old 01-04-2012, 12:15 PM
LKint LKint is offline
Jr. Member
 

Join Date: Feb 2009
Location: Hudson Valley near NYC
Posts: 9
Phalaenopsis: leaf disease? Wet roots? Male
Default Sun, surgery & wet roots

Thanks for the replies. Some comments in response.
The large picture window 5ft in front of which the plant was sitting DOES get strong winter sun for a few hours each day. I've moved it behind some tall sun-loving African Violets to get more glancing, speckled sun.
There are a few surviving roots in the new sphagnum moss and above it. I've started to lightly spray the visible roots each day to keep the plant going. Is that OK? Continue with weekly watering [well-drained pot]?
The evening room temp is 64 and day temp is 68 [plus sun warmth]. There is baseboard humidified forced air in the room, but not directly on the plant.
Was the "rot" due to the roots soaking in water? Having sawed off the rotted central leaf "stem" is there any first aid for that?
I loved that this store-bought 6-leaf phal had two flower stalks last year and sent out 3 new ones this year!
Reply With Quote
  #6  
Old 01-04-2012, 02:30 PM
Zoi2 Zoi2 is offline
Senior Member
 

Join Date: Jan 2009
Zone: 5a
Member of:OSGKC
Location: Kansas City, MO
Age: 61
Posts: 4,773
Default

If this plant is in moss I don't think I'd spray it everyday, you're not going to get much air to the roots if the moss can't dry and will have a rot problem again. How big of a pot did you use? Can you post a picture of the plant?
Joann
Reply With Quote
Reply

Bookmarks

Tags
bottom, leaf spots, phalaenopsis, roots, wet roots, wet, disease, leaf


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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Yellow bumps on Phalaenopsis leaf Catarina Pests & Diseases 19 09-09-2011 11:25 PM
Phalaenopsis - roots or spikes? patriciams70 Beginner Discussion 11 12-10-2010 10:12 AM
Phalaenopsis Roots Paerata Beginner Discussion 4 04-08-2010 07:18 AM
Problems with formosae dendrobiums - yellowing leaf tips calvin_orchidL Dendrobium Alliance 8 08-09-2009 05:38 PM
Spots/Aerial roots.. Leaf tips Yellow? orchidjunky Beginner Discussion 2 05-14-2008 12:44 AM

All times are GMT -4. The time now is 02:16 PM.

© 2007 OrchidBoard.com
Search Engine Optimisation provided by DragonByte SEO v2.0.37 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

Clubs vBulletin Plugins by Drive Thru Online, Inc.