Orchids forum: Bush orchid

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.New South Wales. Australia
Barrington
Apr 24, 2017 9:34 PM CST
Hi, have a orchid which looks troubled, it faces north/north west and is under an old plum tree, I have tried different remedies without success .
Regards Helen
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Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
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DaisyI
Apr 24, 2017 9:51 PM CST
Hi Helen, Welcome!

Yes, it does look a little worse for wear. Where is this plant located? If you go back to your personal information and add a location, that will help us to help you.

It appears this plant is sitting on the ground. Is that right? Maybe you could back up and take a photo of the whole plant with surrounding area?

I think its a Dendrobium. If it is, it shouldn't be sitting on the ground.

Is it getting direct sun? That may be a problem also. How often is it watered?
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost
.New South Wales. Australia
Barrington
Apr 24, 2017 11:58 PM CST

Thumb of 2017-04-25/Barrington/114eac
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Hi, the plant is sitting on the ground, I water it when needed and it does get full sun for part of the day.
Thumb of 2017-04-25/Barrington/b42c0a have included a photo of the plant in happier times.
My location is upper Hunter ,, West of Barrington Tops.
Thks
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
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DaisyI
Apr 25, 2017 9:32 AM CST
I had to Google your location. New South Wales. It may help to add that to your info that shows at the top of your page.

It is a Dendrobium. What has changed?

Maybe we can get this thread moved to the Orchid Forum were more orchid enthusiatists will see it.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost
Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Plant Database Moderator Forum moderator Aroids Irises I was one of the first 300 contributors to the plant database!
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eclayne
Apr 25, 2017 9:52 AM CST

Plants Admin

Moved to the Orchids forum
Evan
Name: Elaine
Sarasota, Fl
The one constant in life is change
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dyzzypyxxy
Apr 25, 2017 1:29 PM CST
Hi and welcome, Helen. It looks to me as if you might have a fungal infection going on there. Seeing the one leaf near the top of your first photo with black spots surrounded by a yellow border, that's a hallmark of a type of leaf-spotting fungus. I'll have to find it in my other orchid book to give you a name.

But regardless, you'll need to spray with a fungicide of some sort to prevent it from spreading and overtaking the whole plant. I would also cut the leaves carefully to remove the spotted areas as they might still transmit the disease if left. If you can just excise the spot, and leave at least the healthy green part of a leaf, that's good. I like to dust the cut edges of leaves with cinnamon using a cotton swab or small brush, to prevent infection until the cut area dries.

After that, maybe sit the orchid up higher on another upturned pot or something, to help with air circulation around the leaves. Lots of air movement is the primary prevention for fungus amongst orchids. You don't want the leaves to remain wet for too long after rain or watering.
Elaine

"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill
.New South Wales. Australia
Barrington
Apr 26, 2017 5:51 AM CST
Thank you very much for your assistance, I will apply your suggestions asap. Thank you Daisyl for your help and for connecting me with the orchid forum. Cheers. Smiling
.New South Wales. Australia
Barrington
Sep 30, 2017 5:36 PM CST
Hi, I relocated my orchid and it appeared to improve but of late the fungi has returned!. Could you suggest a fungicide to treat the plant?
Regards Helen
Name: Jim Hawk
Odessa, Florida (Zone 9b)
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hawkarica
Sep 30, 2017 6:27 PM CST
It looks like sunburn to me. The black spots are dead and the infection is the yellow ring around it. It really wants some shade.

Jim
"Advertising may be described as the science of arresting the human intelligence long enough to get money from it." -- Steven Leacock
.New South Wales. Australia
Barrington
Oct 1, 2017 1:05 AM CST
Here are recent photos of the affected plant, it looks more like a ? disease of some description. Thank you for your thoughts.
Thumb of 2017-10-01/Barrington/51046c
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Name: lindsey
wesley chapel, fl
Charter ATP Member I was one of the first 300 contributors to the plant database! Orchids
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sugarcane
Oct 1, 2017 6:29 AM CST
Hi Helen,
So sorry to see your once spectacular plant having such difficulties. Are there any orchid societies near you? Having a local expert take a look at your plant might prove helpful. If it is suffering from a disease or fungal problem..you may have to resort to extreme surgery as diseases travel through the plant and spread to previously healthy tissue. Your local garden center may have a selection of fungicides to spray ( If what you have is a fungal problem) oftentimes products for roses will work on orchids. I'm still not sure what kind of orchid you have there, are there several kinds of plants all in that bed? Cymbidium, Cattleya, and others? The picture of the flower doesnt seem to match the foliage. If it is a Dendrobium , you have to be careful what you treat the plant with as they dislike copper that is in some products. Perhaps Joshua will chime in here with some more local resources for you . Fingers crossed that we can help you with this.
lindsey
.New South Wales. Australia
Barrington
Oct 4, 2017 4:59 PM CST
Thanks for the help, it's greatly appreciated.
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
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DaisyI
Oct 8, 2017 9:25 AM CST
Hmmm... If fungacides aren't working, I would start to suspect a virus.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost
Name: Bill
Cape Coral FL (Zone 10a)
Region: United States of America Birds Cat Lover Orchids Lover of wildlife (Raccoon badge) Butterflies
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BigBill
Oct 20, 2017 6:33 AM CST
The plants problems are fungal issues created by growing too shady and in stagnant air. The species is Dendrobium speciosum. Locate the plant gradually off of the ground giving it more sun as you go. DO NOT move it from little to no sun to a lot of sun all at once. gradually get it more and more light. It needs to be watered thoroughly and then dry out between waterings. You can grown it potted or mounted or in a basket. A well draining media is very important. Ultimately it could use three to four hours of sun per day and then otherwise a bright exposure. As far as your plant's disease issues go, they stem from poor air circulation. These issues should fade over time and the plant should grow cleaner. It needs to be higher up off the ground where the breeze can get to it. Please check out our forums more often because there are loads of good people here full of information and knowledge. I tip my hat to you.
"Our children are messages we send to a time we won't see."
Name: Bill
Cape Coral FL (Zone 10a)
Region: United States of America Birds Cat Lover Orchids Lover of wildlife (Raccoon badge) Butterflies
Adeniums Region: Florida Region: Gulf Coast
BigBill
Oct 20, 2017 6:10 PM CST
Oh another point, full sun that this plant might require is not "full sun for a few hours". Full sun is full sun.
It may in fact need sun for four to six hours a day, slightly more during your 'summer', slighly less during your winter.
And make sure that the plant gets good air movement. Gentle breezes mean air movement, stagnant air can stifle a species like this.
"Our children are messages we send to a time we won't see."

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