What is happening to my monopodial plants? New leaves drying out.
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.

What is happening to my monopodial plants? New leaves drying out.
Many perks!
<...more...>


Sponsor
 

Google


Fauna Top Sites
LOG IN/REGISTER TO CLOSE THIS ADVERTISEMENT
  #1  
Old 09-26-2022, 09:37 PM
BrassavolaStars's Avatar
BrassavolaStars BrassavolaStars is offline
Senior Member
 

Join Date: Jul 2018
Zone: 7a
Location: Lower Hudson Valley
Posts: 494
What is happening to my monopodial plants? New leaves drying out. Male
Default What is happening to my monopodial plants? New leaves drying out.

Hello all,

On a few of my plants, an Angraecum didieri (1st photo), a Fenanthera monachica (2nd), and a prized Vanda falcata (3rd+rest), the newest leaves have dried out. Why is the happening and how do I stop it?

On the Vanda, I also posted some pictures of dried leaves that fell out. They are green at the bottom. I *may* have stupidly tugged at them lightly to see if they were still attached. I am worried they took the meristem with them and those growths are ruined. Even on the leaves that have not fallen out, I am worried the meristem is dying/has died. I am also worried about this on behalf of the Renanthera.
Attached Thumbnails
What is happening to my monopodial plants? New leaves drying out.-img_7248-jpg   What is happening to my monopodial plants? New leaves drying out.-img_7247-jpg   What is happening to my monopodial plants? New leaves drying out.-img_7242-jpg   What is happening to my monopodial plants? New leaves drying out.-img_7243-jpg   What is happening to my monopodial plants? New leaves drying out.-img_7244-jpg  

What is happening to my monopodial plants? New leaves drying out.-img_7245-jpg   What is happening to my monopodial plants? New leaves drying out.-img_7246-jpg  
Reply With Quote
  #2  
Old 09-27-2022, 12:51 AM
Roberta's Avatar
Roberta Roberta is online now
Super Moderator
 

Join Date: Jun 2008
Zone: 10a
Location: Coastal southern California, USA
Posts: 13,205
What is happening to my monopodial plants? New leaves drying out. Female
Default

The V. (Neof) falcata looks OK. There are multiple growths. . the Renanthera doesn't look good. Angraecum didieri tends to make new growths. The pattern is troubling, though. What are your conditions? (Light, temperature). How about watering? Has anything changed?
__________________
Orchids teach patience!

Roberta's Orchids (Visit my back yard)

See what orchid species are blooming in Southern California(New page for JUNE 2024)
Reply With Quote
Post Thanks / Like - 1 Likes
Likes BrassavolaStars liked this post
  #3  
Old 09-27-2022, 02:10 AM
BrassavolaStars's Avatar
BrassavolaStars BrassavolaStars is offline
Senior Member
 

Join Date: Jul 2018
Zone: 7a
Location: Lower Hudson Valley
Posts: 494
What is happening to my monopodial plants? New leaves drying out. Male
Default

Quote:
Originally Posted by Roberta View Post
The V. (Neof) falcata looks OK. There are multiple growths. . the Renanthera doesn't look good. Angraecum didieri tends to make new growths. The pattern is troubling, though. What are your conditions? (Light, temperature). How about watering? Has anything changed?
I think the Angraecum has become pretty stable so it should be all right and continue to make new leaves. Unfortunately, on the falcata, while the picture does not show it, virtually every growth has had this drying out happen to the newest leaf. I do also have multiple growths on the Renanthera but same problem on 2/3 of them though that is the sickest plant. Weirdly, while the Renanthera and Angraecum had this problem for a while, it basically happened overnight to the Vanda.

I have been watering them usually around once a week. I have been very neglectful about fertilizer, however. It has also been pretty warm until recently. Most days in August and early September were above 90f. Now it is low 70s in the day and 50s at night. They are outside on a table under an umbrella. That said, my big Angraecum veitchii managed to get pretty badly sunburned on that same table.

This problem actually started months ago in the winter with a different set of plants, one of which died. The others stabilized. It seems to be accelerating.

I also have an ongoing scale infestation but it seems to be confined to the Cattleyas for the most part. I have also been spraying with captan, malathion, and thiomyl since the scale and weird “dry rots” started. It has not gotten better. I’m worried I have now lost the crown/active growing parts of the Renanthera and the Vanda. I hope that is not what the green parts of the leaves that fell of the Vanda were.

Last edited by BrassavolaStars; 09-27-2022 at 02:14 AM..
Reply With Quote
  #4  
Old 09-27-2022, 09:17 AM
camille1585's Avatar
camille1585 camille1585 is offline
Administrator
 

Join Date: Oct 2007
Location: middle of the Netherlands
Posts: 13,721
Default

I'd be curious to know what's going on with the Neofinetia, because I have the same thing happening to mine occasionally and it seems like a really random occurance. I have never paid attention if the meristem is dead after that.
__________________
Camille

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

My Orchid Photos
Reply With Quote
Post Thanks / Like - 1 Likes
Likes BrassavolaStars liked this post
  #5  
Old 09-27-2022, 10:21 AM
Roberta's Avatar
Roberta Roberta is online now
Super Moderator
 

Join Date: Jun 2008
Zone: 10a
Location: Coastal southern California, USA
Posts: 13,205
What is happening to my monopodial plants? New leaves drying out. Female
Default

Once-a-week watering sounds like not enough, especially when it is hot. I am watering pretty much every day in similar temperatures. (Even the ones in the greenhouse which is quite humid but does tend to dry out by late afternoon). If your environment (like a grow tent) so so humid that things don't dry out, then air-movement likely to be inadequate. Vandaceous orchids all need a lot of air around roots, so that frequent watering and some drying in between is what they need. Monopodial orchids don't have any storage mechanism (like pseudobulbs) . When too dry, they do things like losing leaves to reduce transpiration in the "drought".
__________________
Orchids teach patience!

Roberta's Orchids (Visit my back yard)

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

Last edited by Roberta; 09-27-2022 at 11:10 AM..
Reply With Quote
Post Thanks / Like - 1 Likes
Likes BrassavolaStars liked this post
  #6  
Old 09-27-2022, 12:56 PM
BrassavolaStars's Avatar
BrassavolaStars BrassavolaStars is offline
Senior Member
 

Join Date: Jul 2018
Zone: 7a
Location: Lower Hudson Valley
Posts: 494
What is happening to my monopodial plants? New leaves drying out. Male
Default

Thank you all for the replies.

They have been outside in my yard completely in open air. I think the air circulation might be okay then. They probably did need more water. I should mention though that if it rained, they also got watered in addition to my regular scheduled watering. It is New York so it rains a fair amount. Maybe they did not get the benefit of this because they were slightly under an awning though. I think I might be able to save the renanthera as it has a keiki. I definitely need to fix my fertilizer and scale problems though.[COLOR="Silver"]


Edit: I have also been watering the Renanthera a few extra times for the past month or so.
Reply With Quote
  #7  
Old 09-27-2022, 01:14 PM
Roberta's Avatar
Roberta Roberta is online now
Super Moderator
 

Join Date: Jun 2008
Zone: 10a
Location: Coastal southern California, USA
Posts: 13,205
What is happening to my monopodial plants? New leaves drying out. Female
Default

Quote:
Originally Posted by BrassavolaStars View Post

I have been watering them usually around once a week. I have been very neglectful about fertilizer, however. It has also been pretty warm until recently. Most days in August and early September were above 90f. Now it is low 70s in the day and 50s at night. They are outside on a table under an umbrella. That said, my big Angraecum veitchii managed to get pretty badly sunburned on that same table.
First, scale is always bad news... and you'll have to be persistent to get it under control. While things are still outside, a good time to treat with the chemical pesticides that you likely won't want in the house if that's where they'll go i winter. (GH, keep on treating... GH is a petri dish)

If the weather went from hot to chilly quickly, also a challenge. I hope you are doing your watering in the morning... when the nights get into the 50's F you don't want them wet - cold and wet is an invitation for rots. A bit of toasting will leave you with ugly leaves but the Angraecum Veitchii should still be fine. Dealing with sun, as it moves through the seasons, is a challenge that for me took several years to get right. Definitely requires a lot of vigilance.
__________________
Orchids teach patience!

Roberta's Orchids (Visit my back yard)

See what orchid species are blooming in Southern California(New page for JUNE 2024)
Reply With Quote
  #8  
Old 09-27-2022, 01:47 PM
estación seca's Avatar
estación seca estación seca is offline
Senior Member
 

Join Date: Jun 2015
Zone: 9b
Location: Phoenix AZ - Lower Sonoran Desert
Posts: 18,147
What is happening to my monopodial plants? New leaves drying out. Male
Default

#1 and #3 look like not enough watering. If there is plenty of air at the roots you can water Angraecums and Neofinetias every day during warm weather. Once a week isn't enough. BUT! Your weather is changing. Neos don't do well cool and damp.

#2 looks like residual damage from bugs.
__________________
May the bridges I've burned light my way.

Weather forecast for my neighborhood
Reply With Quote
Reply

Bookmarks

Tags
happening, leaves, meristem, vanda, worried


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
Eric Goo of Phoenix Orchids: Growing Phalaenopsis estación seca Hybrids 8 01-30-2023 12:37 AM
ideal phalaenopsis leaf color! Shadeflower Advanced Discussion 10 01-13-2022 09:25 PM
Will a monopodial plant continue to grow new leaves if the newest leaf is damaged? BrassavolaStars Beginner Discussion 6 11-05-2019 08:04 AM
My maxillaria tenuifolia (coconut orchid) isn't happy. Leaves drying up. Elfkin Maxillaria Alliance 6 03-22-2017 12:44 PM
Anyone used these LED lights? katrina Growing Under Lights 36 09-04-2016 09:27 AM

All times are GMT -4. The time now is 11:04 AM.

© 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.