Help! Something has spread to most of collection

[gcc0008]

About two months ago I moved all my orchids, except two phalaenopsis, outside because I was not sure if they were getting enough light. I noticed spots several weeks ago on a cattleya and like an idiot did not take immediate action. Now there are spots on many of the leaves on most all my orchids. I need to know what it is, and how to get rid of it. My collection is less than 10 orchids and most have spots so I want to avoid disposing of plants to save the rest because there would not be much left to save. And as a note many of these were acquired bagged from lowes this summer, but the cattleya was acquired last February.

The first four photos are of the really bad cattleya
The fifth photo is of another cattleya
The sixth and seventh are of a bassavola nodosa hybrid
The 8th and ninth are of an epilaeliocattleya
The last photo is of new growth, oddly enough, on the really bad cattleya, so im hopind it still can be saved.

Thank you in advance!

[gcc0008]

here are some more photos of an encyclia cordigera

Thank you!!

[RandomGemini]

What has the weather and temperature been like? All of the plants look wet, has that water been allowed to stand on the leaves? If so, it could be some sort of rot.

[HighSeas]

By the color of the leaves, they look as though they aren't accustomed to the light you've moved them into. Those brown areas are "burns" from the sun. They can't take full sun and should be acclimated to higher light levels.

So....just put them in a shaded area for now and gradually move them into higher levels of light. You'll get new growth. The burned areas look bad but won't kill the plant.

[Orchid Whisperer]

I agree - sunburn.

[RJSquirrel]

burned beyond recognition. Do yourself a favor, throw them in the trash and try again

[sweetjblue]

Looks like you might have several things going on here.
Pic 1 looks like there might be spider mite damage. Also looking at the condition of the leaves themselves and the p- bulbs your not watering enough or the roots have rotted, both are shriveled sure sign their not getting enough water one way of the other.
All the other plants have signs of either being sunburned as previously mentioned or have Erwinia or Bacterial Brown Rot.
Wheither you want to try and save them is entirely up to you. It will take alot of time, effort and sometimes money to get them to look good again. Only you can decide if its worth it. It will however make for a good learning experience.

For future reference:

Orchid Diseases

Orchid Pests

Good Luck!

Judi

[RosieC]

I agree pic 1 looks like Spider Mite damage. 3, 5, 8 & 9 looks like sunburn. I don't know on the others.

[orchidsarefun]

if you decide to keep them, make sure that you thoroughly spray them ALL ( underside of leaves too ) for spider mite. These mites are the curse of windowsill breeders, the curse that keeps on giving. Give me mealybugs instead any day !

[RosieC]

Originally Posted by orchidsarefun

These mites are the curse of windowsill breeders, the curse that keeps on giving. Give me mealybugs instead any day !

Agreed, I recognise the damage because I've been battling them. So far I think I am winning by washing the affected plants every two days. As there are about 15 affected plants it takes a while, but every one gets a wash with my fingers run down each leaf while the water runs over. Been doing that 3 months and yesterday after 3 months clear noticed them back again on a couple of them