Urgent advice needed on decontaminating plants from disease.
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.

Urgent advice needed on decontaminating plants from disease.
Many perks!
<...more...>


Sponsor
 

Google


Fauna Top Sites
Register Urgent advice needed on decontaminating plants from disease. Members Urgent advice needed on decontaminating plants from disease. Urgent advice needed on decontaminating plants from disease. Today's PostsUrgent advice needed on decontaminating plants from disease. Urgent advice needed on decontaminating plants from disease. Urgent advice needed on decontaminating plants from disease.
LOG IN/REGISTER TO CLOSE THIS ADVERTISEMENT
Go Back   Orchid Board - Most Complete Orchid Forum on the web ! > >
Reply
 
Thread Tools Rate Thread Display Modes
  #1  
Old 10-12-2019, 04:23 PM
BrassavolaStars's Avatar
BrassavolaStars BrassavolaStars is offline
Senior Member
 

Join Date: Jul 2018
Zone: 7a
Location: Lower Hudson Valley
Posts: 496
Urgent advice needed on decontaminating plants from disease. Male
Default Urgent advice needed on decontaminating plants from disease.

Hello All,

I need some urgent advice on what to do to decontaminate some plants. Three of my plants were just exposed to some sort of rot.

The rotted spot pictured exudes a dark liquid. I stupidly pushed this spot which let out air and possibly liquid near other plants and while I don’t think any got on the other plants, I want to be certain that this nasty looking disease doesn’t spread.

This spot also touched the other leaves on the same plant.

I have Physan, Alliete, Thymol, Daconil, Captan, and Immunox Spectracide. I already sprayed the physan. What should I do next to ensure that no other plants are harmed?
Attached Thumbnails
Urgent advice needed on decontaminating plants from disease.-img_0097-jpg  
Reply With Quote
  #2  
Old 10-12-2019, 04:45 PM
Roberta's Avatar
Roberta Roberta is offline
Super Moderator
 

Join Date: Jun 2008
Zone: 10a
Location: Coastal southern California, USA
Posts: 13,857
Urgent advice needed on decontaminating plants from disease. Female
Default

I'll leave it to Ray to suggest the best treatment to prevent spread, he is far more knowledgeable than I am. However, for the pseudubulb with the rot, time for surgery.(If you read my posts, you will see that I don't recommend cutting very often. This is one situation where I do recommend it) That leafless back bulb, with the rotted spot on top, I would get out a single-use single-edge razor blade, and slice below the rotted area. If you see the rot extending further, slice down until you get to clean tissue. You can then dust the cut with cinnamon. Hopefully, you have caught it before it can get into the rest of the plant. When rot gets into the rhizome, the plant is history, but you may have caught it in time.

If you don't have any of those razor blades, head for your favorite home-improvement store. You can find them for modest price in the paint department, and you need to have them in your arsenal.
__________________
Orchids teach patience!

Roberta's Orchids (visit my back yard)

See what orchid species are blooming in Southern California(New page for DECEMBER 2024)

Last edited by Roberta; 10-12-2019 at 05:49 PM..
Reply With Quote
Post Thanks / Like - 1 Likes
Likes Fran20 liked this post
  #3  
Old 10-13-2019, 07:10 AM
Ray's Avatar
Ray Ray is offline
Senior Member
 

Join Date: May 2005
Member of:AOS
Location: Oak Island NC
Posts: 15,203
Urgent advice needed on decontaminating plants from disease. Male
Default

Without know the particular disease, it's hard to say what treatment to use, but I think a Physan spray on the rest of your collection is likely to have killed any pathogens on their surfaces.

I agree on Roberta's surgery recommendation, although frankly, I don't think you need to specifically go out and buy single-edge razor blades. Any sharp knife will do - I've been known to whip out my pocket knife - just don't use it on a second plant until it has been cleaned well. That's the advantage of blades - they're disposable.
__________________
Ray Barkalow, Orchid Iconoclast
FIRSTRAYS.COM
Try Kelpak - you won't be sorry!
Reply With Quote
Post Thanks / Like - 1 Likes
Likes Fran20 liked this post
  #4  
Old 10-13-2019, 12:36 PM
Roberta's Avatar
Roberta Roberta is offline
Super Moderator
 

Join Date: Jun 2008
Zone: 10a
Location: Coastal southern California, USA
Posts: 13,857
Urgent advice needed on decontaminating plants from disease. Female
Default

Another advantage of those razor blades - they are sharp, so make a clean cut. They don't work well on a tough rhizome, but on the relatively soft but firm tissue of a pseudobulb, they really are "surgical". However, Ray is right, getting the job done is more important than the tool.
__________________
Orchids teach patience!

Roberta's Orchids (visit my back yard)

See what orchid species are blooming in Southern California(New page for DECEMBER 2024)
Reply With Quote
Post Thanks / Like - 1 Likes
Likes Fran20 liked this post
Reply

Bookmarks

Tags
advice, disease, physan, plants, spot


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

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
Urgent advice on rescuing a phal needed! Fuzzy Beginner Discussion 5 06-19-2014 11:21 PM
Importing plants: The effect of Trichoderma on root development Lars Kurth Advanced Discussion 31 05-13-2012 11:31 AM
JADE PLANTS...off topic, but help needed... rehric00 Off Topic - Totally 7 04-27-2011 01:17 AM
Advice needed on my Dendrobiums greg32 Beginner Discussion 3 04-19-2007 07:19 PM
Den superbum Advice needed Randy Advanced Discussion 1 01-02-2006 03:19 PM

All times are GMT -4. The time now is 09:45 PM.

© 2007 OrchidBoard.com
Search Engine Optimisation provided by DragonByte SEO v2.0.37 (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.

Clubs vBulletin Plugins by Drive Thru Online, Inc.