Black spots on vanda 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.

Black spots on vanda roots.
Many perks!
<...more...>


Sponsor
 

Google


Fauna Top Sites
LOG IN/REGISTER TO CLOSE THIS ADVERTISEMENT
  #1  
Old 09-15-2020, 05:07 PM
Justright1 Justright1 is offline
Jr. Member
 

Join Date: Nov 2019
Posts: 11
Black spots on vanda roots.
Default Black spots on vanda roots.

Hello. I'm struggling with some Vandas. I own about two vanda orchids. I follow the regular care for Vanda orchids. I own a 2 gallon bucket full of water and dip them everyday. My watering is kind of strange sometimes I let one of them sit in the bucket for 3 hours and then maybe the next one for 1 hour. I'm quite busy in the day so I never really have a timer on them. I'm just realizing there are black spots on the old roots , and have this strange pink pigment to them. I just thought that the black spots were something on the old roots , but now they are traveling to the new root growth. I noticed one time that I haven't changed the bucket in a while, and when I dipped the orchid in I realized the water had a strange film on top of it. I have a feeling dipping the orchids in that strange film a couple times led to this strange black spotting. I don't know what it is, and is there any way to get it off or prevent it from spreading? And is my orchids going to die?
Attached Thumbnails
Black spots on vanda roots.-pxl_20200914_185140332-jpg   Black spots on vanda roots.-pxl_20200914_185123998-jpg   Black spots on vanda roots.-pxl_20200914_185112442-jpg   Black spots on vanda roots.-pxl_20200914_185040079-jpg  
Reply With Quote
  #2  
Old 09-15-2020, 05:16 PM
estación seca's Avatar
estación seca estación seca is offline
Senior Member
Black spots on vanda roots.
 

Join Date: Jun 2015
Zone: 9b
Location: Phoenix AZ - Lower Sonoran Desert
Posts: 11,012
Black spots on vanda roots. Male
Default

What are your ambient temperatures day/night? Humidity?

Vanda roots seldom look perfect except in perfectly warm, very humid environments. Yours are acceptable.

Use fresh water every day. This is very important. Don't let a bucket sit, and soak in that day after day.
__________________
It's a dry heat.
Weather forecast for
my neighborhood
Reply With Quote
  #3  
Old 09-15-2020, 05:24 PM
Justright1 Justright1 is offline
Jr. Member
 

Join Date: Nov 2019
Posts: 11
Black spots on vanda roots.
Default

My room stays at about 40% humidity day and at night 35%. And my room stays at 75 Fahrenheit day and night. I do have a small diffuser going to keep the humidity go up.
Reply With Quote
  #4  
Old 09-15-2020, 05:28 PM
estación seca's Avatar
estación seca estación seca is offline
Senior Member
Black spots on vanda roots.
 

Join Date: Jun 2015
Zone: 9b
Location: Phoenix AZ - Lower Sonoran Desert
Posts: 11,012
Black spots on vanda roots. Male
Default

That's quite cool but not impossible for Vandas. They like much warmer days. Use fresh water each time.
__________________
It's a dry heat.
Weather forecast for
my neighborhood
Reply With Quote
  #5  
Old 09-15-2020, 05:48 PM
Justright1 Justright1 is offline
Jr. Member
 

Join Date: Nov 2019
Posts: 11
Black spots on vanda roots.
Default

Is there a way to get rid of the black spots?

---------- Post added at 05:48 PM ---------- Previous post was at 05:45 PM ----------

And is it killing the roots?
Reply With Quote
  #6  
Old 09-16-2020, 12:04 AM
Orchidtinkerer Orchidtinkerer is offline
Jr. Member
 

Join Date: Sep 2020
Posts: 13
Black spots on vanda roots.
Default

ok so you have a bucket sitting around for months that you use to dunk your orchid in, just so I understand the context.

The water in the bucket has developed a film on the surface on the water. Ok

Roots have black spots - this I have no clue but I think this is not a major issue.

Roots have pink color - now this I think is a slight problem

Roots should be silvery and green. If they develop staining as bare-root plants the only thing that can stain them is excessive nutrients.

So we must ask what and how much are you feeding it - also don't forget since you are re-using your water you are feeding it on every single watering.

Generally people feed and rinse. Feed rinse and repeat. If you don't rinse every so often nutrients can build up to toxic levels and burn the roots causing discoloration.

The film on the surface of the water is from something decaying in your bucket - this will not harm your orchid as such but is not a good practice. Some fertilizers break down soon after use - all organic fertilizers do anyway since they are organic. They need to be used straight away and can't be kept in a bucket otherwise they start to decay (and even smell sometimes) and more importantly decompose and dissapear!

Just as a tip - use a Glass Vase - this stops roots drying out as fast so you don't need to dunk - you can use a spray bottle instead and the Vase will hold the excess water from spraying. Always find what is easiest and works best for you, dunking is not a very time efficient or safe method for that matter. It's the best way to transfer a virus (if one were present) from one plant to the other so a spray bottle is far more hygienic for the plant too.

Last edited by Orchidtinkerer; 09-16-2020 at 12:18 AM..
Reply With Quote
  #7  
Old 09-16-2020, 12:24 AM
estación seca's Avatar
estación seca estación seca is offline
Senior Member
Black spots on vanda roots.
 

Join Date: Jun 2015
Zone: 9b
Location: Phoenix AZ - Lower Sonoran Desert
Posts: 11,012
Black spots on vanda roots. Male
Default

Vanda roots are certainly alive as long as they have the larger diameter. Sometimes when they die the velamen shrinks in size down to the wiry core root, but this also happens with unhappy but living roots. I don't cut off Vanda roots unless they are black and slimy.

The black spots will not go away. The roots will never look great in your lower humidity, but they will stay alive and the plant will grow. Your temperatures and humidity will lead to a struggle for most Vandas but they can survive and flower. They prefer hot, humid weather with slightly cooler nights.
__________________
It's a dry heat.
Weather forecast for
my neighborhood
Reply With Quote
  #8  
Old 09-16-2020, 01:06 AM
Roberta's Avatar
Roberta Roberta is offline
Super Moderator
 

Join Date: Jun 2008
Zone: 10a
Location: Coastal southern California, USA
Posts: 5,378
Black spots on vanda roots. Female
Default

On general principles, it is not good to share water between plants. Any disease/fungus/rot, etc from one will be transferred to the other.

It is pretty difficult to over-feed a Vanda - they like fertilizer more than most orchids. A small amount of fertilizer with each watering mimics what they get in nature, and is much better than a larger amount less frequently. But you need to come up with a better way to accomplish than than by sharing water, and even worse, having it sit around for multiple days growing whatever organisms that it got from the roots. The suggestion of a vase is very good. Search the forum for "Vase Culture" and you'll see some very successful setups that people have used to grow Vandas in low-humidty, in-the-house conditions.
__________________
"Extraordinary claims require extraordinary evidence" Carl Sagan

Roberta's Orchids (Visit my back yard)

What's blooming for Southern California Species hobbyists (New page for September 2020)
Reply With Quote
  #9  
Old 09-16-2020, 02:27 AM
Justright1 Justright1 is offline
Jr. Member
 

Join Date: Nov 2019
Posts: 11
Black spots on vanda roots.
Default

Thank you all for the help. Replying to some of those questions. When I fertilize I use the recommended amount of Miracle-Gro fertilizer. It says mix 1/4 tablespoon for every gallon of water. Since my bucket is 2 gallons I add "2" 1/4 tablespoons. I forget to fertilize, so lately I have been fertilizing every week. I'm so glad you mentioned this because the pink coloring wasn't a huge concern. I'm glad I know now. The instances when the water has strange film on it, I did not chang the water for couple of days. I do change it every two or three days. Also I definitely do not leave the fertilizer in the bucket, as soon as they are done soaking, I will dump the water and refill it with fresh tap water.
Reply With Quote
Reply

Bookmarks

Tags
black, orchids, spots, strange, vanda


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
Vanda Roots Browning mica28 Vanda Alliance - others 11 05-27-2020 01:01 PM
black spots turn to black rot RJSquirrel Pests & Diseases 2 08-17-2013 11:03 PM
eek! black roots! need fast help shaelyn Beginner Discussion 7 01-06-2013 06:11 PM
Need Help with black spots on Vanda (PICS) cbloveday Vanda Alliance - others 9 03-29-2009 01:36 PM
Rotting roots problem with my C. Genie May Spots x Bl. Morning Glory Judi Pests & Diseases 3 01-30-2009 09:54 AM

All times are GMT -4. The time now is 07:54 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.