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  1. T

    does this look like a virus?

    Mericlones of infected plants can still be infected. If a careful, more difficult technique is used for mericloning (done by only some people) you can produce some “clean” off-spring, but I would still test for a few years. Initially clean mericlones could also become infected again during the...
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    Cattleya Arthos (Dinard 'Blue Heaven' x trianae (coerulea) '#6')

    My plant has a sheath and I want to wait and see it bloom this season before making any judgments. Then I will describe some changes this last year.
  3. T

    does this look like a virus?

    I don’t think anyone is more careful than Deborah is now. There is evidence to support everything she does. I am a little less careful only because my plants don’t go anywhere and I hardly ever get a new plant (and then only a negative tested one). I also don’t have any insect pests in my plant...
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    Phragmipedium DLI light level.

    A simple table shows the DLI achieved with various light intensities (peak photon flux density, PPFD) and two different day lengths. DLI is moles of photons per day.
  5. T

    does this look like a virus?

    Paphs and Phrags seem less likely to get infected. Southern belle and I did collection-wide testing about the same time and threw away a good proportion of plants, feeling awful. After getting “clean” we are very careful to only buy plants that have been tested and to be sure to disinfect tools...
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    Phragmipedium DLI light level.

    Sorry, I didn’t know that. The automatic DLI part is very useful the natural light (including green house grower) where the light intensity changes greatly throughout a day. The constant change in day length is also being measured. With LED lighting, the intensity is constant and the calculation...
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    Phragmipedium DLI light level.

    Deborah, that was an older version that we had. All the new 500 series now accurately measure within the PAR range.
  8. T

    Phragmipedium DLI light level.

    I have not. I think an important issue is measuring the photons in the PAR range. I don’t think most FC meters and phone apps will not be filtering to the PAR range. For some light sources you will be measuring light intensity falsely high. I know the Apogee meters are relatively expensive, but...
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    Phragmipedium DLI light level.

    I have grown Pharagmipediums for about 15 years, the last 13 under LED lights. I have decreased my Phrags over the years as I increased Cattleyas. I currently have only two plants of a tetraploid Jason Fischer, two plants of a triploid Fritz Schomburg, a seedling of a diploid Robert-Jan Quene...
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    Cattleya purpurata carnea ‘Waldemar silva’ SM/DOG

    Have you seen that the increased light intensity has shortened the new growths on many of the unifoliate species?
  11. T

    Orchid Wiz is Back!

    Is that a one-time price or a yearly subscription? How often is it updated?
  12. T

    Cattleya purpurata carnea ‘Waldemar silva’ SM/DOG

    David, the leaf and pseudobulb structure looks different on the two flowering growths, but I can’t see all of them. This would be the impact of your cultural change. Can you describe the difference for me?
  13. T

    Phrag Lovely Lynne 4n x sib blooming thread

    The second one has better configuration and I agree the tall stems are an inconvenience for the indoor grower. There is a thickness to the flowers in the picture that fit well with polyploid. I have accepted that no matter how we shuffle kovachii, besseae, and dalessandroi genes, the best...
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    Cattleya Bow Bells 'White Sands'

    When I think about all of the moving around of plants that have happened during the last hundred years I am not surprised that we have lost track of where something has come from. I also understand how labels get switched or lost. Sometimes, Bow Bells might not even be Bow Bells! Some heritage...
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    Cattleya Bow Bells 'White Sands'

    Don’t you think the exhibitor should have the choice about that? I think anyone bringing a plant for judging must know that having an award registered requires a fee. I can imagine that someone who has grown a plant particularly well and gotten more and bigger flowers might want it judged to a...
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    Cattleya Bow Bells 'White Sands'

    I agree with you, Deborah. Already some impediments to going to judging. Why add another. An award officially designates a plant as an outstanding cultivar. This certainly matters to someone trying to breed or clone to trade and sell plants. However, if we are running of judges and judging...
  17. T

    Cattleya warscewiczii Habitat in Colombia 2024

    I forgot that Colombia is just north of the equator, so still northern hemisphere. Seasons still correspond to ours in North America.
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    Phragmipedium Fritz Schomburg

    I have a similar cross from Orchids Limited made with kovachii 'Tesoro Morado'. The besseae 'Rob's Choice' makes these triploid (3N) since 'Rob's Choice' was confirmed tetraploid by a university lab somewhere. My Fritz Shomburg has become two large plants and they grow pretty quickly. The shape...
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    Cattleya warscewiczii Habitat in Colombia 2024

    Which is early autumn/fall, correct?
  20. T

    Cattleya Bow Bells 'White Sands'

    I am so glad that you accumulated such an excellent collection of plants while you could.
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