Can anyone tell me what is an 'original natural insecticide' and which plant it came from?
2007-06-26 10:22:56 · 4 answers · asked by Anonymous in Home & Garden ➔ Garden & Landscape
peppermint and other mint oils
2007-06-26 11:50:50 · answer #1 · answered by Krispy 6 · 0⤊ 0⤋
Befor 1940 began the deluge of synthetic pesticides crude extracts from plants where well known to work. Plant extracts such as pyrethrum from Chrysanthemum cinerariefolium, nicotine from Nicotiana glauca, and rotenone from a tropical leguminous plant were among the first compounds used to control insects of agricultural importance.
Pyrethrum as an insecticide dates back to Persia, circa 400 B.C. but in Europe not until a merchant form the Caucasus brought it in the early 19th century.
There are reports, as early as the 17th century, of Indians fishing using rotenone-containing plants.They used it due to its toxic effect on the fish. Teixeira JR, Lapa AJ, Souccar C, Valle JR 1984. Timbós: ichthyotoxic plants used by Brazilian Indians.
Time line of insect treatments begins with the Sumerians using sulfur as an insecticide about 2500BC. Sulfur is readily obtained from garlic.
http://www.pestmanagement.co.uk/lib/history.shtml
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2007-06-26 10:55:30 · answer #2 · answered by gardengallivant 7 · 0⤊ 0⤋
Neem Oil is an original insecticide and you guessed it - it comes from the neem tree. Organic and not harmful to the environment. Check out more @planet natural.
2007-06-26 11:23:26 · answer #3 · answered by James B 2 · 0⤊ 0⤋
You might want to check out this website. http://www.dirtdoctor.com/
2007-06-26 10:36:19 · answer #4 · answered by Anonymous · 1⤊ 0⤋