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#1
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Paph bud blast?
I have a Paph Amelia Hart Alexander that has been in bloom since October,
and was working on a seventh bud right now. When I picked it up today to take a better look at it, the bud just dropped off. Looking inside I found that the pouch was much smaller than would be expected at this stage of bud development, and the pouch was dark (almost dark red or brown). The bud had grown almost to the size where I had expected it to open any moment. It's dorsal sepal and petals looked normal. The leaves of the plant look healthy. The spike looks like it might still have ideas for another bud after this, still too small to tell. My questions a 1) Are reasons for paph bud blast similar to reasons for phal bud blast? 2) I had to move this plant about two weeks ago to my main growing area in order to vacate its prior spot in a smaller growing area that I needed in order to keep new plants that I acquired at the New York show isolated from my collection. Could this be the cause of the bud blast? 3) Aside from looking under the leaves for possible pests, is there anything else I should look for? 4) Should I cut off the flower spike? Would this be the Paph's way of telling me that it's flowering season is done, or that it is stressed and thus even if there is a possibility of another bud, it's better not to allow it? Since I have had 7-8 months of blooming from this sequential Paph already, I won't mind cutting off the spike. On the other hand the plant does look healthy, and it does have a new growth already, and I wouldn't want to cut the spike without a good reason -- is there a good reason? 5) I have seen pictures of Paph bud blast, and this bud did not really look like the pictures I had seen, aside from the small size of the pouch, the dark color of this pouch. Until this evening when the bud fell off I had no idea that it was not developing normally. Is this unusual? Thanks, Joanna |
#2
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Hi, Joanna.
I find paphs to be mush tougher to blast than phals, but of course environmental changes **could** affect the buds similarly. Without knowing what the differences in the two growing areas are, it's hard to say if that was the problem though. My guess is that the plant was simply getting "tired." Maybe the cultural differences helped that along. I find it best to NOT cut the inflorescences of sequential-flowering paphs, as they can sometimes come back to life after an extended period - as long as many months. -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Artwork, Books and Lots of Free Info! "J Fortuna" wrote in message news:R3Bee.1010$sZ2.463@trnddc04... I have a Paph Amelia Hart Alexander that has been in bloom since October, and was working on a seventh bud right now. When I picked it up today to take a better look at it, the bud just dropped off. Looking inside I found that the pouch was much smaller than would be expected at this stage of bud development, and the pouch was dark (almost dark red or brown). The bud had grown almost to the size where I had expected it to open any moment. It's dorsal sepal and petals looked normal. The leaves of the plant look healthy. The spike looks like it might still have ideas for another bud after this, still too small to tell. My questions a 1) Are reasons for paph bud blast similar to reasons for phal bud blast? 2) I had to move this plant about two weeks ago to my main growing area in order to vacate its prior spot in a smaller growing area that I needed in order to keep new plants that I acquired at the New York show isolated from my collection. Could this be the cause of the bud blast? 3) Aside from looking under the leaves for possible pests, is there anything else I should look for? 4) Should I cut off the flower spike? Would this be the Paph's way of telling me that it's flowering season is done, or that it is stressed and thus even if there is a possibility of another bud, it's better not to allow it? Since I have had 7-8 months of blooming from this sequential Paph already, I won't mind cutting off the spike. On the other hand the plant does look healthy, and it does have a new growth already, and I wouldn't want to cut the spike without a good reason -- is there a good reason? 5) I have seen pictures of Paph bud blast, and this bud did not really look like the pictures I had seen, aside from the small size of the pouch, the dark color of this pouch. Until this evening when the bud fell off I had no idea that it was not developing normally. Is this unusual? Thanks, Joanna |
#3
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Thank you Ray.
I have moved other orchids between my growing areas in the past, without noticeable effects, so I am thinking that the difference between the two growing areas is not really the main issue. But just in case the differences are it after all, here are some details: My small growing area where I keep newcomers, and where this paph used to be, is in the living room, in front of a shaded balcony, which is north facing, so not much light from the outside, but it is flanked by two grow lamps that are enough distance from the plants to provide Phal and Paph light levels but probably not more. The humidity is lower in this area than in the main one. Since it's fairly close to the thermostat the day night temperature difference is less likely to happen in this area -- so I tend to not expect orchids to spike while they are here. My main growing area is in our den. It has more grow lamps, a humidifier, and the window is less shaded (though still north facing, like all my windows). The plant in question was not up close to the window but lit by a grow lamp, about the same distance from the grow lamp as in the old area, I think, though I only eye balled it, so could be a change in distance. This growing area is further from the thermostat and thus is more likely to get cooler at night (more spiking activity here as a result). As already mentioned, I don't think these differences are enough to really stress a plant that is moved from one area to the other, at least I have not observed that to be the case. So it is probably just that it got tired. I will follow your advice, and will not cut this spike. Thanks, Joanna "Ray" wrote in message ... Hi, Joanna. I find paphs to be mush tougher to blast than phals, but of course environmental changes **could** affect the buds similarly. Without knowing what the differences in the two growing areas are, it's hard to say if that was the problem though. My guess is that the plant was simply getting "tired." Maybe the cultural differences helped that along. I find it best to NOT cut the inflorescences of sequential-flowering paphs, as they can sometimes come back to life after an extended period - as long as many months. -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Artwork, Books and Lots of Free Info! "J Fortuna" wrote in message news:R3Bee.1010$sZ2.463@trnddc04... I have a Paph Amelia Hart Alexander that has been in bloom since October, and was working on a seventh bud right now. When I picked it up today to take a better look at it, the bud just dropped off. Looking inside I found that the pouch was much smaller than would be expected at this stage of bud development, and the pouch was dark (almost dark red or brown). The bud had grown almost to the size where I had expected it to open any moment. It's dorsal sepal and petals looked normal. The leaves of the plant look healthy. The spike looks like it might still have ideas for another bud after this, still too small to tell. My questions a 1) Are reasons for paph bud blast similar to reasons for phal bud blast? 2) I had to move this plant about two weeks ago to my main growing area in order to vacate its prior spot in a smaller growing area that I needed in order to keep new plants that I acquired at the New York show isolated from my collection. Could this be the cause of the bud blast? 3) Aside from looking under the leaves for possible pests, is there anything else I should look for? 4) Should I cut off the flower spike? Would this be the Paph's way of telling me that it's flowering season is done, or that it is stressed and thus even if there is a possibility of another bud, it's better not to allow it? Since I have had 7-8 months of blooming from this sequential Paph already, I won't mind cutting off the spike. On the other hand the plant does look healthy, and it does have a new growth already, and I wouldn't want to cut the spike without a good reason -- is there a good reason? 5) I have seen pictures of Paph bud blast, and this bud did not really look like the pictures I had seen, aside from the small size of the pouch, the dark color of this pouch. Until this evening when the bud fell off I had no idea that it was not developing normally. Is this unusual? Thanks, Joanna |
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