Structure of plant leaf
User Name

Registration is FREE. Click to become a member of OrchidBoard community
(You're NOT logged in)

menu menu

Donate Now
and become
Forum Supporter.

Structure of plant leaf
Many perks!



Fauna Top Sites
Old 11-28-2018, 11:28 AM
Ravi Ravi is offline

Join Date: Nov 2018
Posts: 59
Structure of plant leaf
Default Structure of plant leaf

If I remember my rudimentary (almost extinct now) school level Botany as a student of Biology, a plant leaf is supposed to have a dorsal surface and ventral surface, ventral is for photosynthesis and dorsal is for gas exchange much like human lungs.
Much is talked about keeping the ventrals clean with the help of moist facial tissues to soft cloth and dilute lime juice and some chemical ( name I donít know) to keep the leaves shining , the latter view I donít subscribe because shiny leaves are inherent.
My point is , what about the dorsal surface which is extremely important and also can serve as a nidus for infections and infestations? Can the surface be cleaned with moist facial tissue ?
Reply With Quote
Old 11-28-2018, 02:09 PM
WeirdGuySeattle WeirdGuySeattle is offline
Senior Member

Join Date: Nov 2013
Posts: 136
Structure of plant leaf

Ravi - all depends on the plant I think. Epiphytes have evolved differently than terrestrial plants like cymbidiums, Disa, Paphs and Phrags.

Gas exchange is happening on almost all the orchid roots too - which is why the hobby is always yammering on about some latest media craze (Orchiata - is it really better?)

Air movement, humidity, misting and watering should be enough to clean the leaf and root surfaces to improve gas exchange. You shouldn't need to be cleaning your leaves unless you are growing orchids in a construction zone.

If you are talking about cleaning pests / infections from leaf surfaces... better air movement works best for fungus in my experience. Isopropyl alcohol at 50% strength (and a bit of dish soap) has been effective in battling scale for me (at least somewhat - as good as insect soaps i've tried).
Reply With Quote
Post Thanks / Like - 1 Likes
Likes Ravi liked this post
Old 11-28-2018, 05:54 PM
Orchid Whisperer's Avatar
Orchid Whisperer Orchid Whisperer is offline
Senior Member

Join Date: Jul 2012
Zone: 7b
Posts: 2,878
Structure of plant leaf Male

Originally Posted by WeirdGuySeattle View Post
You shouldn't need to be cleaning your leaves unless you are growing orchids in a construction zone.
Keep in mind that large industrial cities in places like the United States, India, China, etc. can have pretty severe air pollution problems, including particulates that you may want to wash off.

If it is just cleaning you want to do, a dilute, mild dish detergent solution works well. To avoid spreading disease between plants, apply the solution with a sprayer, wipe dirt off of each individual plant with a new paper towel that is discarded before moving to the next plant. I rinse plants thoroughly after the soap solution.

If your leaves don't appear dirty, the leaf cleaning may not be necessary (after all, nobody cleans the wild orchids!!)
ďThe good thing about science is that it's true whether or not you believe in it.Ē

― Neil deGrasse Tyson

"We know the Earth is not flat because, if it was, cats would have pushed everything off the edge of it by now."
Reply With Quote
Old 11-29-2018, 12:34 AM
Ravi Ravi is offline

Join Date: Nov 2018
Posts: 59
Structure of plant leaf

Thank you very much for sharing your experiences
Reply With Quote
Old 11-29-2018, 08:16 AM
camille1585's Avatar
camille1585 camille1585 is offline
Super Moderator

Join Date: Oct 2007
Location: middle of the Netherlands
Posts: 11,674

I wipe down all the leaves with a damp paper towel once in a long while (less than once a year) to get rid of accumulated dust (and pollution, back when I lived in a city), or chunk them in the bathtub and shower them clean. My plants are never outside so never get rain to clean them off. I consider leaf cleaning to be very low in the list of things to do to keep the plants happy and healthy...

About Orchiata, it is better mostly for plants that stay damp between waterings (like Paphs/Phrags) since the bark doesn't break down so fast, and stays optimal for a much longer period. Other than that, I don't see why else you'd use it over other types of bark.

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

My Orchid Photos
Reply With Quote
Post Thanks / Like - 1 Likes
Likes Ravi liked this post


dorsal, facial, leaf, moist, surface

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
Reimagining Plant Judging epiphyte78 Orchid Lounge 45 08-03-2017 04:18 PM
Discolored Phal Leaf Pumpkin92 Pests & Diseases 2 01-19-2017 07:53 AM
Drooping leaf on Phal dreamynights Beginner Discussion 7 08-14-2014 09:32 AM
New leaf on phal causing side of plant to break open? steph Beginner Discussion 11 05-03-2010 03:16 PM
Browning/Yellowing Leaf on Encyclia SweetAddy Pests & Diseases 1 04-17-2010 08:06 PM

All times are GMT -4. The time now is 09:27 PM.

© 2007
Search Engine Optimisation provided by DragonByte SEO v2.0.37 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

Clubs vBulletin Plugins by Drive Thru Online, Inc.