Catasetum bulb black spot
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.

Catasetum bulb black spot
Many perks!
<...more...>


Sponsor
 

Google


Fauna Top Sites
LOG IN/REGISTER TO CLOSE THIS ADVERTISEMENT
  #21  
Old 01-13-2020, 02:43 AM
silanah77 silanah77 is offline
Jr. Member
 

Join Date: Jan 2020
Posts: 17
Catasetum bulb black spot
Default

Quote:
Originally Posted by SouthPark View Post
Silanah -- I took this photo this morning .... attached. The rot region totally dried. No issues with the bulb. The original grey brown region has become a dark brown dried patch. None of my other catasetum orchids had this.

The cause wasn't sunburn. And the original ominous colouring was exactly like that in your photo. My application of yates anti-rot phosacid stopped the attack of whatever it was.

Thank you, SouthPark for the photo! I'm happy that you save your orchid - it looks very good! I think my patches were a little different and l'm pretty sure that they were because of overwatering-I just didn't have to spray water on the roots the last time before my vacation...Anyway, now the plant is dormant, I don't see any black spots any more. Although the orchid doesn't look as pretty as before, I hope to save it. Thank you again and have a nice day!
Reply With Quote
  #22  
Old 01-13-2020, 03:14 AM
SouthPark's Avatar
SouthPark SouthPark is offline
Senior Member
 

Join Date: Dec 2018
Member of:AOS
Location: Australia
Posts: 1,064
Catasetum bulb black spot Male
Default

Quote:
Originally Posted by silanah77 View Post
I think my patches were a little different
Most welcome silanah. The colour of the patches (originally, when I first encountered the issue several months ago) - not shown in the photo that I took this morning - were exactly the same tones and colour as you showed in your original photo.

In the photo that I uploaded, the patches are now dried to a dark brown colour. The regions remain sunken-in a little bit, but totally dry and hardened up.

Nice to hear there are no more blackening regions with your bulb!


Last edited by SouthPark; 01-13-2020 at 06:20 AM..
Reply With Quote
Post Thanks / Like - 1 Likes
Likes silanah77 liked this post
  #23  
Old 02-13-2020, 04:08 PM
silanah77 silanah77 is offline
Jr. Member
 

Join Date: Jan 2020
Posts: 17
Catasetum bulb black spot
Default

Hello again everyone! I just wanted to share with you that I've got a new growth on my damaged bulb. The older bulb is already very shrivelled. I keep the plant on a dry sphagnum moss in a warm place with light(but not direct) and I give a little moist on the sphagnum moss around the plant, but not under it. I have some worries that maybe the new growth will not receive enough energy and will die, so did anyone of you have such experience? What can I expect? ...also the last bulb that I cut has again those black areas-they can be seen in the photo...
Attached Thumbnails
Catasetum bulb black spot-img_20200213_201459-jpg  
Reply With Quote
  #24  
Old 02-13-2020, 04:17 PM
Roberta's Avatar
Roberta Roberta is offline
Super Moderator
 

Join Date: Jun 2008
Zone: 10a
Location: Coastal southern California, USA
Posts: 3,713
Catasetum bulb black spot Female
Default

Put the plant back in its pot and leave it alone now - the new roots need to grow undisturbed. A little moisture on the moss is OK, but don't over-do it until the new growth and roots are well-established. It is great that you have a new growth - At this point don't worry about the old pseudobulbs. The new growth will suck the energy out of them to grow roots then leaves, so will renew itself as these Catasetinae do. In a year the old ones may well be brown and shiriveled, that's OK.
__________________
"Extraordinary claims require extraordinary evidence" Carl Sagan

Roberta's Orchids

What's blooming for Southern California Species hobbyists
Reply With Quote
Post Thanks / Like - 2 Likes
Likes silanah77, isurus79 liked this post
  #25  
Old 02-13-2020, 04:44 PM
silanah77 silanah77 is offline
Jr. Member
 

Join Date: Jan 2020
Posts: 17
Catasetum bulb black spot
Default

Quote:
Originally Posted by Roberta View Post
Put the plant back in its pot and leave it alone now - the new roots need to grow undisturbed. A little moisture on the moss is OK, but don't over-do it until the new growth and roots are well-established. It is great that you have a new growth - At this point don't worry about the old pseudobulbs. The new growth will suck the energy out of them to grow roots then leaves, so will renew itself as these Catasetinae do. In a year the old ones may well be brown and shiriveled, that's OK.
Thank you, Roberta for your quick response! I'll do this immediately! Have a nice day!
Reply With Quote
  #26  
Old 02-14-2020, 01:46 PM
isurus79's Avatar
isurus79 isurus79 is offline
Senior Member
American Orchid Society Judge
 

Join Date: Sep 2007
Zone: 8b
Location: Austin, Texas
Age: 40
Posts: 8,102
Default

Quote:
Originally Posted by Roberta View Post
Put the plant back in its pot and leave it alone now - the new roots need to grow undisturbed. A little moisture on the moss is OK, but don't over-do it until the new growth and roots are well-established. It is great that you have a new growth - At this point don't worry about the old pseudobulbs. The new growth will suck the energy out of them to grow roots then leaves, so will renew itself as these Catasetinae do. In a year the old ones may well be brown and shiriveled, that's OK.
__________________
Pics on Flickr

Instagram

YouTube
Reply With Quote
Post Thanks / Like - 1 Likes
Likes silanah77 liked this post
Reply

Bookmarks

Tags
black, catasetum, growing, orchids, read


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
Oncidium Twinkle -- black spot on pseudobulb? GardenGnomeVariety Pests & Diseases 7 10-25-2019 08:47 PM
tolumnia black spot, cut? vpsihop@hotmail.com Pests & Diseases 3 12-27-2016 01:40 AM
I found a black spot on my Angraecum 'Mark Aldridge.' Butters Vanda Alliance - Angraecum/Aerangis 5 11-14-2016 02:24 AM
Catasetum tenebr. grwing from an old bulb poluekt_sowranski Catasetum and Stanhopea Alliance 6 11-16-2011 11:05 AM
Phal: Black spot, white dust, little crusty thing Blondie Pests & Diseases 6 03-23-2009 01:39 PM

All times are GMT -4. The time now is 04:35 AM.

© 2007 OrchidBoard.com
Search Engine Optimisation provided by DragonByte SEO v2.0.37 (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.

Clubs vBulletin Plugins by Drive Thru Online, Inc.