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Anticipating problems
Frank,
I think you are overly concerned. Unsurprisingly, I have more S/H experience than anyone, and have never seen a mosquito in the reservoir of a semi-hydro pot, even on those occasions when everything was grown outdoors, unprotected for a few months in the middle of summer, while replacing the GH glazing or last summer, when doing a complete scouring and reorganization of the GH. I believe that the flushing is completely adequate, and I believe the bugs would need to get to the reservoir from the top (unlikely), rather than through the drainage holes. If you do feel better about using a disinfectant (I good way to keep down algae, too), one ounce of household bleach per gallon of water is OK, with no detrimental effects on the plant. I tend to use commercial products in the GH these days, but used bleach once a month-or-two for years. -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Books, Artwork, and Lots of Free Info! .. . . . . . . . . . . "Frank H. Kirchner" wrote in message news:wIZTb.2185$Yj.680@lakeread02... Hi guys- I am very happily converting a large share of my orchid collection to semi-hydroponics. The plants are happy. I am happy. So, as I lust for the warmth of summer, I started worrying. I have one hell of a lot of standing water in my pots now and started worrying about mosquitoes. The concern is a bit more than worrying about a pest as the West Nile Virus is increasingly prevalent here in Virginia. Will regular watering and flushing being adequate to remove mosquito larva? Will a couple of drops of bleach damage orchids? What thoughts do you growers have about controlling mosquitoes in your greenhouse/collection? Will summer come soon? I'm desparate! Thanks all. Frank -- |
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