Cattleya leaf problem
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.

Cattleya leaf problem
Many perks!
<...more...>


Sponsor
 

Google


Fauna Top Sites
LOG IN/REGISTER TO CLOSE THIS ADVERTISEMENT
  #1  
Old 07-13-2020, 05:25 PM
littleflower littleflower is offline
Member
 

Join Date: Apr 2019
Location: Georgia
Posts: 70
Cattleya leaf problem Female
Default Cattleya leaf problem

Can anyone identify this? It’s on two leaves of one of my cattleyas , the rest of the plant looks good and healthy. Someone on Facebook mentioned sunscald, which certainly is possible.... But all my cattleyas are generally in the same place, near a window, no problems with any of the others
Attached Thumbnails
Cattleya leaf problem-24bc981c-3055-4287-9605-4a6c3b254e89-jpg   Cattleya leaf problem-aa79973d-12cb-437b-bd8d-6942b93b1004-jpg  
Reply With Quote
  #2  
Old 07-13-2020, 05:40 PM
SouthPark's Avatar
SouthPark SouthPark is offline
Senior Member
 

Join Date: Dec 2018
Member of:AOS
Location: Australia, North Queensland
Posts: 4,637
Default

If the leaf temperature gets too high or too low, or if temperature of the leaf changes from one to another much different temperature too quickly, then you could get results like that.

If those regions appear to be drying, or becoming dry and hard - then that's ok.

I can see a blob of water or something on the leaf. Are the leaves getting water on them? Sometimes - a warm leaf that cools down abruptly due to water on them - can also lead to that kind of thing ----- which is still temperature-related.

This is only assumption. How long roughly have you been growing those orchids in that particular area?
Reply With Quote
  #3  
Old 07-13-2020, 06:04 PM
littleflower littleflower is offline
Member
 

Join Date: Apr 2019
Location: Georgia
Posts: 70
Cattleya leaf problem Female
Default

I’ve been growing cattleyas for several months in this area. That was a drop of water on the leaf, I usually try not to get water on the leaves, but always have a fan on after watering just in case. Thank you
Reply With Quote
Post Thanks / Like - 1 Likes
Likes SouthPark liked this post
  #4  
Old 07-13-2020, 06:09 PM
JScott JScott is offline
Senior Member
 

Join Date: Sep 2017
Location: Grand Prairie, TX
Posts: 1,129
Cattleya leaf problem
Default

That looks to me like thermal damage: too much sun, too hot, or too cold. Tell us more about how you grow it. Is it by a window? Which direction does the window face? Does it get any direct sunlight? Have you moved the plant recently? Do you grow under artificial light? Has the leaf been in contact with any objects, such as pressed up against the window itself? It's hard to tell for sure from just a single picture, but it looks like thermal damage to me.

As southpark said, if the damaged area dries up and doesn't spread, you'll have an unsightly plant for a while, but no concern about disease. The leaf is damaged over a large enough area that it may turn yellow and fall off. If that happens, that's okay as long as it hasn't spread to any other leaves. If the problem spreads anywhere else on the plant, then you may need to worry about bacterial rot or other disease, but such diseases are uncommon if growing conditions are right. If you notice it spreading, you will need to cut away the damaged parts to keep whatever bacteria or pathogen is causing the problem from spreading any further.

Sometimes things just happen that we can't really explain, but if the rest of the plant remains healthy, I wouldn't worry about it.

Last edited by JScott; 07-13-2020 at 06:12 PM..
Reply With Quote
  #5  
Old 07-13-2020, 06:17 PM
littleflower littleflower is offline
Member
 

Join Date: Apr 2019
Location: Georgia
Posts: 70
Cattleya leaf problem Female
Default

Thanks! It is near a south facing window, I need to be more conscious of how much direct sun it’s getting. I wasn’t concerned previously because all the plants are doing well. No artificial light, just sunlight. And no, Not up against anything. I will keep my eye on it, my main concern was all scratched other kids. I think I might keep it away just in case.
Reply With Quote
  #6  
Old 07-13-2020, 06:23 PM
JScott JScott is offline
Senior Member
 

Join Date: Sep 2017
Location: Grand Prairie, TX
Posts: 1,129
Cattleya leaf problem
Default

Oh yeah, by a south window, it very may well be sun burn, and it may not have happened before because the sun is just now reached its hottest position in the sky, and also as the sun's position changes in the sky through the year, the places where the direct sunlight lands and stays change over time. I adjust the position of my south facing orchids periodically throughout the summer to keep them from getting burned as the sun changes position in the sky. It won't hurt to keep it separated from your other plants for a bit, but I don't think you have anything that's going to spread. Just keep an eye on it, pay attention to how much direct light it gets, and adjust its position as necessary.
Reply With Quote
  #7  
Old 07-13-2020, 06:28 PM
littleflower littleflower is offline
Member
 

Join Date: Apr 2019
Location: Georgia
Posts: 70
Cattleya leaf problem Female
Default

Thank you!! I’m always learning....often the hard way!!
Reply With Quote
  #8  
Old 07-13-2020, 06:56 PM
Carebear2 Carebear2 is offline
Member
 

Join Date: Jun 2020
Posts: 51
Cattleya leaf problem
Default

I could be off, I don't want to say the wrong thing but generally sun damage occurs on the leaves closest to the sun not the ones furthest away... No? This is how it's generally been with mine, I mean it looks like possible sun damage, maybe a tree was providing shade on the top leaves. Otherwise it could well still be something else
Reply With Quote
  #9  
Old 07-13-2020, 08:31 PM
estación seca's Avatar
estación seca estación seca is offline
Senior Member
Cattleya leaf problem
 

Join Date: Jun 2015
Zone: 9b
Location: Phoenix AZ - Lower Sonoran Desert
Posts: 13,547
Cattleya leaf problem Male
Default

That's sunburn.
__________________
May the bridges I've burned light my way.

Weather forecast for my neighborhood
Reply With Quote
  #10  
Old 07-13-2020, 08:47 PM
Roberta's Avatar
Roberta Roberta is online now
Super Moderator
 

Join Date: Jun 2008
Zone: 10a
Location: Coastal southern California, USA
Posts: 7,656
Cattleya leaf problem Female
Default

I concur with the general consensus - sunburn. The seasonal shift in sun can totally surprise you - and the plant... a sudden blast of light and heat, rather than gentle increase. For toasting leaves, the most dangerous time at my house is right around the vernal equinox in March when the sun suddenly clears the house or trees. Second most dangerous for me is the fall where again sudden sun shifts, accompanied by the seasonal hot, dry conditions, also can cause burns. For those growing behind a window, it may be summer instead but the common thread is rapid change. Vigilance is vital...also taking notes (and putting them on the calendar) can be useful, because the pattern is likely to repeat next year.
__________________
"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 2021)
Reply With Quote
Post Thanks / Like - 1 Likes
Likes Jeff214 liked this post
Reply

Bookmarks

Tags
cattleyas, identify, it’s, sunscald, window


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
Black patch on cattleya leaf ArronOB Pests & Diseases 7 01-01-2019 12:51 AM
Cattleya New Growth & Leaf Questions... Jenna09 Beginner Discussion 8 08-29-2018 09:53 PM
cattleya leaf problem oscar freak Cattleya Alliance 5 01-09-2015 02:43 AM
Please help with my Cattleya, don't know why leaf is drooping at pseudobulb SJF Cattleya Alliance 20 03-27-2013 02:16 PM
Not a Cattleya NOID? Translate label + leaf ?? ElenaMarie Beginner Discussion 30 01-10-2012 07:59 PM

All times are GMT -4. The time now is 03:19 PM.

© 2007 OrchidBoard.com
Search Engine Optimisation provided by DragonByte SEO v2.0.37 (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.

Clubs vBulletin Plugins by Drive Thru Online, Inc.