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Poorly Phal
Hi,
Over the last couple of weeks one of my phal orchids has gone off. The latest leaf has become brown and soft in the middle and seems to be spreading quickly. So far the other leaves seem OK, but a close look shows that one may be about to go the same way. Apart from throwing it away, is there anything I can do? Hopefully, this is the link to a pictu www.flickr.com/photos/139948773@N07 Sorry, but I can not work out how to put in a "proper" link. -- Roger T 700 ft up in Mid-Wales |
Poorly Phal
On 04/04/2016 22:17, Chris Hogg wrote:
On Mon, 4 Apr 2016 21:48:23 +0100, Roger Tonkin wrote: Hi, Over the last couple of weeks one of my phal orchids has gone off. The latest leaf has become brown and soft in the middle and seems to be spreading quickly. So far the other leaves seem OK, but a close look shows that one may be about to go the same way. Apart from throwing it away, is there anything I can do? Hopefully, this is the link to a pictu www.flickr.com/photos/139948773@N07 Sorry, but I can not work out how to put in a "proper" link. Link works OK if I copy and paste it into the address line of my browser (otherwise my system tries to treat it as an e-mail address). If that doesn't work for others, they can try double-clicking on this http://tinyurl.com/jlwrcsz Sorry, can't help with the problem, although I'm surprised it's developing in the middle of the leaves rather than at one end or the other. Could it be sun-burn or a cold draft? If mine, I'd cut them off at the stem. It looks a bit like orchid Brown Rot (scroll down link to see image). http://www.orchidsmadeeasy.com/orchid-diseases/ This is just a quick response, but seems likely. There is some advice given, but I would certainly remove the leaf if it were my plant and keep the plant isolated. I will check tomorrow if I can see anything else, but got to dash now. -- Spider On high ground in SE London Gardening on heavy clay |
Poorly Phal
"Roger Tonkin" wrote
Over the last couple of weeks one of my phal orchids has gone off. The latest leaf has become brown and soft in the middle and seems to be spreading quickly. So far the other leaves seem OK, but a close look shows that one may be about to go the same way. Apart from throwing it away, is there anything I can do? Hopefully, this is the link to a pictu www.flickr.com/photos/139948773@N07 Sorry, but I can not work out how to put in a "proper" link. Before going down the route of bacterial infections I would look for a physical cause. I expect the plant is on a windowsill, are those leaves near the glass, have they touched the glass over winter and got frosted, have they got water (condensation) on them overnight when it's cold, that sort of thing. -- Regards. Bob Hobden. Posted to this Newsgroup from the W of London, UK |
Poorly Phal
In article ,
says... "Roger Tonkin" wrote Over the last couple of weeks one of my phal orchids has gone off. The latest leaf has become brown and soft in the middle and seems to be spreading quickly. So far the other leaves seem OK, but a close look shows that one may be about to go the same way. Apart from throwing it away, is there anything I can do? Hopefully, this is the link to a pictu www.flickr.com/photos/139948773@N07 Sorry, but I can not work out how to put in a "proper" link. Before going down the route of bacterial infections I would look for a physical cause. I expect the plant is on a windowsill, are those leaves near the glass, have they touched the glass over winter and got frosted, have they got water (condensation) on them overnight when it's cold, that sort of thing. I was wondering about that, what had I done wrong. The plant is in a cold north facing bedroom, only heated if we have family to stay. It is on a table near a window but not close enough to touch it. We have had a water problem in a corner of that room, in January with all the rain, but not near the plant. Given the speed with which it has taken hold, I don't think it originated in January. I water from the bottom first thing in the morning, so I don't think it is me! I have severed the offend leaves close to the plant, where they look quite healthy, so just keeping my fingers crossed. -- Roger T 700 ft up in Mid-Wales |
Poorly Phal
"Roger Tonkin" wrote
I was wondering about that, what had I done wrong. The plant is in a cold north facing bedroom, only heated if we have family to stay. It is on a table near a window but not close enough to touch it. We have had a water problem in a corner of that room, in January with all the rain, but not near the plant. Given the speed with which it has taken hold, I don't think it originated in January. I water from the bottom first thing in the morning, so I don't think it is me! I have severed the offend leaves close to the plant, where they look quite healthy, so just keeping my fingers crossed. I water my orchids, except for the large standard Cymbidiums, by placing the pots in a bucket of pot deep water, with fertiliser 3 out of 4 waterings, and leaving them there for at least half an hour to soak. I then drain them off thoroughly and place them back on their windowsills. I do this about once a week, slightly more often in summer, slightly less in winter. The growers use a flooding/draining system to their benches when they grow orchids so my system is similar. -- Regards. Bob Hobden. Posted to this Newsgroup from the W of London, UK |
Poorly Phal
"BobHobden" wrote
"Roger Tonkin" wrote I was wondering about that, what had I done wrong. The plant is in a cold north facing bedroom, only heated if we have family to stay. It is on a table near a window but not close enough to touch it. We have had a water problem in a corner of that room, in January with all the rain, but not near the plant. Given the speed with which it has taken hold, I don't think it originated in January. I water from the bottom first thing in the morning, so I don't think it is me! I have severed the offend leaves close to the plant, where they look quite healthy, so just keeping my fingers crossed. I water my orchids, except for the large standard Cymbidiums, by placing the pots in a bucket of pot deep water, with fertiliser 3 out of 4 waterings, and leaving them there for at least half an hour to soak. I then drain them off thoroughly and place them back on their windowsills. I do this about once a week, slightly more often in summer, slightly less in winter. The growers use a flooding/draining system to their benches when they grow orchids so my system is similar. It goes without saying that the water must be at room temperature not straight out of the rain barrel. -- Regards. Bob Hobden. Posted to this Newsgroup from the W of London, UK |
Poorly Phal
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Poorly Phal
An update on my phal
Having amputated the rotting leaves, after a bit of a sulk it has now put on a spurt of growth, with a new flower branch on the old stem, and intriguingly some change to the couple of aerial roots. These seem to have made a "pinch" at the end then started to turn green above. Not sure what is happening, but will watch with interest. All photo's at http://tinyurl.com/zkfdl57 In article - september.org, says... Hi, Over the last couple of weeks one of my phal orchids has gone off. The latest leaf has become brown and soft in the middle and seems to be spreading quickly. So far the other leaves seem OK, but a close look shows that one may be about to go the same way. Apart from throwing it away, is there anything I can do? Hopefully, this is the link to a pictu www.flickr.com/photos/139948773@N07 Sorry, but I can not work out how to put in a "proper" link. -- Roger T 700 ft up in Mid-Wales |
Poorly Phal
"Roger Tonkin" wrote
An update on my phal Having amputated the rotting leaves, after a bit of a sulk it has now put on a spurt of growth, with a new flower branch on the old stem, and intriguingly some change to the couple of aerial roots. These seem to have made a "pinch" at the end then started to turn green above. Not sure what is happening, but will watch with interest. All photo's at http://tinyurl.com/zkfdl57 Healthy roots should look like that with a greenish bit at the end, it means they are growing. -- Regards. Bob Hobden. Posted to this Newsgroup from the W of London, UK |
Poorly Phal
On 09/06/2016 22:36, BobHobden wrote:
"Roger Tonkin" wrote An update on my phal Having amputated the rotting leaves, after a bit of a sulk it has now put on a spurt of growth, with a new flower branch on the old stem, and intriguingly some change to the couple of aerial roots. These seem to have made a "pinch" at the end then started to turn green above. Not sure what is happening, but will watch with interest. All photo's at http://tinyurl.com/zkfdl57 Healthy roots should look like that with a greenish bit at the end, it means they are growing. But, surely, that reddish tinge is a sign of stress? Usually drought stress, in my experience. The root tip should be green. -- Spider On high ground in SE London Gardening on heavy clay |
Poorly Phal
"Spider" wrote
BobHobden wrote: "Roger Tonkin" wrote An update on my phal Having amputated the rotting leaves, after a bit of a sulk it has now put on a spurt of growth, with a new flower branch on the old stem, and intriguingly some change to the couple of aerial roots. These seem to have made a "pinch" at the end then started to turn green above. Not sure what is happening, but will watch with interest. All photo's at http://tinyurl.com/zkfdl57 Healthy roots should look like that with a greenish bit at the end, it means they are growing. But, surely, that reddish tinge is a sign of stress? Usually drought stress, in my experience. The root tip should be green. Reddish tinge on Phals is normally down to too much light but not anything to get too concerned about. They take a lot more light than growers expect in the UK as our sun is so weak compared to where they grow naturally in this world. -- Regards. Bob Hobden. Posted to this Newsgroup from the W of London, UK |
Poorly Phal
On 11/06/2016 08:13, BobHobden wrote:
"Spider" wrote BobHobden wrote: "Roger Tonkin" wrote An update on my phal Having amputated the rotting leaves, after a bit of a sulk it has now put on a spurt of growth, with a new flower branch on the old stem, and intriguingly some change to the couple of aerial roots. These seem to have made a "pinch" at the end then started to turn green above. Not sure what is happening, but will watch with interest. All photo's at http://tinyurl.com/zkfdl57 Healthy roots should look like that with a greenish bit at the end, it means they are growing. But, surely, that reddish tinge is a sign of stress? Usually drought stress, in my experience. The root tip should be green. Reddish tinge on Phals is normally down to too much light but not anything to get too concerned about. They take a lot more light than growers expect in the UK as our sun is so weak compared to where they grow naturally in this world. Understood. I'd read somewhere that the stress was down to drought, not excess light. I usually see it on my phals when I've been a bit tardy with the watering. I bow to your superior knowledge, as always. -- Spider On high ground in SE London Gardening on heavy clay |
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