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#1
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Nicotine
Nicotine is a powerful alkaloid insecticide and was available to
amateur gardeners fifty or so years ago. However it is also very poisonous to humans as well as being addictive, and is now only available to commercial growers (AIUI). Even they have to adopt stringent safety precautions when using it. Tobacco leaves typically contain about 5% nicotine. Someone on a recent thread (I think it was one on red spider mite) mentioned almost jokingly that they'd heard you could make an insecticide by soaking old cigarette butts in water. Is there an old-established recipe for doing this (so many ounces of tobacco per gallon, soaked overnight, or whatever) that gives a nicotine solution of sufficient concentration to be insecticidal but harmless to us mortals? Is there a harmless concentration? After all, smokers happily puff their way through umpteen cigarettes a day, and whatever long-term illness they die from, acute nicotine poisoning isn't it. -- Chris E-mail: christopher[dot]hogg[at]virgin[dot]net |
#2
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Nicotine
Chris Hogg wrote in message . ..
Nicotine is a powerful alkaloid insecticide and was available to amateur gardeners fifty or so years ago. However it is also very poisonous to humans as well as being addictive, and is now only available to commercial growers (AIUI). Even they have to adopt stringent safety precautions when using it. Tobacco leaves typically contain about 5% nicotine. Someone on a recent thread (I think it was one on red spider mite) mentioned almost jokingly that they'd heard you could make an insecticide by soaking old cigarette butts in water. Is there an old-established recipe for doing this (so many ounces of tobacco per gallon, soaked overnight, or whatever) that gives a nicotine solution of sufficient concentration to be insecticidal but harmless to us mortals? Is there a harmless concentration? After all, smokers happily puff their way through umpteen cigarettes a day, and whatever long-term illness they die from, acute nicotine poisoning isn't it. Actually there is sime evidence that nicotine itself encourages the growth of cancers. -- Neil Jones- http://www.butterflyguy.com/ "At some point I had to stand up and be counted. Who speaks for the butterflies?" Andrew Lees - The quotation on his memorial at Crymlyn Bog National Nature Reserve |
#3
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Nicotine
Chris Hogg wrote in message . ..
Nicotine is a powerful alkaloid insecticide and was available to amateur gardeners fifty or so years ago. However it is also very poisonous to humans as well as being addictive, and is now only available to commercial growers (AIUI). Even they have to adopt stringent safety precautions when using it. Tobacco leaves typically contain about 5% nicotine. Someone on a recent thread (I think it was one on red spider mite) mentioned almost jokingly that they'd heard you could make an insecticide by soaking old cigarette butts in water. Is there an old-established recipe for doing this (so many ounces of tobacco per gallon, soaked overnight, or whatever) that gives a nicotine solution of sufficient concentration to be insecticidal but harmless to us mortals? Is there a harmless concentration? After all, smokers happily puff their way through umpteen cigarettes a day, and whatever long-term illness they die from, acute nicotine poisoning isn't it. Actually there is sime evidence that nicotine itself encourages the growth of cancers. -- Neil Jones- http://www.butterflyguy.com/ "At some point I had to stand up and be counted. Who speaks for the butterflies?" Andrew Lees - The quotation on his memorial at Crymlyn Bog National Nature Reserve |
#4
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Nicotine
In message , Chris Hogg
writes Nicotine is a powerful alkaloid insecticide and was available to amateur gardeners fifty or so years ago. However it is also very poisonous to humans as well as being addictive, and is now only available to commercial growers (AIUI). Even they have to adopt stringent safety precautions when using it. Tobacco leaves typically contain about 5% nicotine. Someone on a recent thread (I think it was one on red spider mite) mentioned almost jokingly that they'd heard you could make an insecticide by soaking old cigarette butts in water. Is there an old-established recipe for doing this (so many ounces of tobacco per gallon, soaked overnight, or whatever) that gives a nicotine solution of sufficient concentration to be insecticidal but harmless to us mortals? Homeopathic levels ;-) Basically you do not mess with the stuff. A half decent chemist can extract enough nicotine from a couple of cigarettes for human LD50. There are recipes out on the web that will get you into serious trouble unless you are used to handling dangerous chemicals. Natural toxins are not "safe". And the kitchen sink chemistry recipes to extract them are positively dangerous (besides being unlicensed use). Is there a harmless concentration? After all, smokers happily puff their way through umpteen cigarettes a day, and whatever long-term illness they die from, acute nicotine poisoning isn't it. Only because burning the stuff is an incredibly inefficient process. The other problem with nicotine as an insecticide is that it generally comes laced with tobacco mosaic virus which despite its name will also infect lots of other valuable plants. TMV can even be viable in the smoke from tobacco. Regards, -- Martin Brown |
#5
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Nicotine
Hope it is ok to post here........just saw on one of my gardening
programs here in California, about synthetic nicotine........ it paralyzes the bugs on Crape Myrtle trees........a systemic that you mix with water and pour around plant........didn't catch the maker....maybe BAYER? I went on line to search but did not receive anything further........good group you have here.....maybe you can tell me about this product? Thankyou, Sara |
#6
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Nicotine
".........The other problem with nicotine as an insecticide is that it
generally comes laced with tobacco mosaic virus which despite its name will also infect lots of other valuable plants. TMV can even be viable in the smoke from tobacco ........" Not for at least the last 50 years, this was basically an old wife's tale from the 30's. We used Nicotine shreds regularly on tomato crops and in 10 years we never had one case of Mosaic virus, and we grew around half an acre a year. -- David Hill Abacus nurseries www.abacus-nurseries.co.uk |
#7
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Nicotine
".........The other problem with nicotine as an insecticide is that it
generally comes laced with tobacco mosaic virus which despite its name will also infect lots of other valuable plants. TMV can even be viable in the smoke from tobacco ........" Not for at least the last 50 years, this was basically an old wife's tale from the 30's. We used Nicotine shreds regularly on tomato crops and in 10 years we never had one case of Mosaic virus, and we grew around half an acre a year. -- David Hill Abacus nurseries www.abacus-nurseries.co.uk |
#8
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Nicotine
".........The other problem with nicotine as an insecticide is that it
generally comes laced with tobacco mosaic virus which despite its name will also infect lots of other valuable plants. TMV can even be viable in the smoke from tobacco ........" Not for at least the last 50 years, this was basically an old wife's tale from the 30's. We used Nicotine shreds regularly on tomato crops and in 10 years we never had one case of Mosaic virus, and we grew around half an acre a year. -- David Hill Abacus nurseries www.abacus-nurseries.co.uk |
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