On Sun, 1 Apr 2007 00:21:19 +0100, Janet Baraclough
wrote:


The active chemical occurs in several members of the compositae
family, including, chrysanthemum and marigold. See

http://www.patentstorm.us/patents/54...scription.html

which is much too long to reproduce here, but here's a snippet

"Industrially, pyrethrum extracts are obtained by extraction of dried
pyrethrum flowers with hexane followed by dewaxing and decolorization to
yield a mixture containing approximately 20% pyrethrins and 80% inert
plant materials or solvents. This technical extract is registered with
the Environmental Protection Agency and is a standard item of commerce
used for formulating numerous end products. Flower production is
centered in Kenya and surrounding countries, with some production being
attempted in Tasmania and New Guinea. While pyrethrum flowers are not
grown commercially in the United States, some of the Compositae
(daisies, marigolds, etc.) in U.S. gardens probably produce these
compounds. There has been an effort to cultivate C. cinerariaefolium in
Oregon and Arizona but this is not yet a viable commercial source. "

Janet.

All this says is that no form of Tagetes has been formulated as a
viable source, so you, me, nobody anywhere has ever used any form of
Tagetes to kill insects. Pyrethrum FLOWERS is where the compound is
found, not the leaves. Your post proves it.