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Here's my set-up for 2000 orchids in UK...

This is a discussion on Here's my set-up for 2000 orchids in UK... within the Semi Hydro / Lights / Greenhouses / Accessories forums, part of the Orchid Culture category; Wonderful setup Geoff. Thanks for taking the time to post and tell us about your ...

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  1. #11
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    Wonderful setup Geoff. Thanks for taking the time to post and tell us about your greenhouse.

    Cheers,
    BD

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    Great setup Geoff. 2000 orchids in there? That's about 9 times the number of orchids in my shade house of approximately the same area! That's amazing! I thought I needed a bigger grow area - but what I actually need is better organisation.Thanks , I know it will make the missus happy( about not expanding the orchid house).

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    Though here in the Philippines, we have to be careful and vigilant specially with mosquito larvae that might develop for risk of dengue. Altho adding some Physan into the water can acts as a deterrent against the larvae developing into winged adults.
    I don't know if they sell them in the Philippines, but in the US you can buy little "dunks", that have BTI in them, and it kills the larvae in the water...i think they are okay to use with plants. You should check that out.

  4. #14
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    Thanks for the info Camille. I'll keep my eyes open for these if they can be found here.

  5. #15
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    Quote Originally Posted by ManilaByNight View Post
    The plastic tubs filled with water with the orchid pots sitting in it gave me a great idea to collectively grow the plants in S/H and raise the humidity all at once.

    Though here in the Philippines, we have to be careful and vigilant specially with mosquito larvae that might develop for risk of dengue. Altho adding some Physan into the water can acts as a deterrent against the larvae developing into winged adults.
    I always used to add Physan to all the water use in my greenhouse for any purpose at all ; now I can't get it it,(Physan) I use a substitiute - similar composition , something about ammonium quaternary as I recall it - but again it goes in all water . I have been using similar suystems for 15 years , always with Physan or something else - I have never seen any larvae or other wildlife (!) in the water.

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    What about fungus, and mold...Isn't that a problem? There has to be a balance, doesn't there? I find that mold & fungus start when the humidity gets too high in the greenhouse... Betty

  7. #17
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    Quote Originally Posted by espranch View Post
    What about fungus, and mold...Isn't that a problem? There has to be a balance, doesn't there? I find that mold & fungus start when the humidity gets too high in the greenhouse... Betty
    Fungus and mold where ? Physan ( and similar products) act - and I quote the label on a tin of Physan 20 I just found in my store-shed - "as an algaecide, fungicide, ...... etc etc.

    I get a little sooty mold on leaves, but spraying with Physan ( or similar) keeps that in check , although I clean up leaves when getting a plant ready for a show, or when I repot. Air movement is also very important in preventing mold growth. I think a fan is an absolute essential in any growing space - just enough air movement to keep the leaves moving gently.

  8. #18
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    We use quaternary ammonium compounds as disinfectants at work. they are not viruscidal, but bacteriacidal and fungicidal. gotta keep athletes foot fungus to a minimum in the shower areas!

  9. #19
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    Yep ; when I first asked for help - on another site - in getting a Physan substitute in UK , swimming pool disinfectants came up . You are right that it doesn't kill virus, but then very little does ,the problem being that they are in the cells, attached to the chrosomosome, unlike pests and fungal infections which are usually on the outside of the cells.

  10. #20
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    Hi Geoff ! Very nice set up ! I have been reading your hydroculture posts as well. You seem to have a very good grip on this, nice article as well. I had a few questions though, the most important pertaining to viruses. In this collective sump or reservoir that you isn't there a possibility of transferring virus from one plant to another passively through the nutrient solution?? What is your experience with that. I am very much interested in growing plants this way. I have a thousand plants now, and it will be impossible to test each for viruses. What is your experience with this??

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