[compost_tea] Re: Off topic but related.

From: tomjasz <tom_at_livesoil.com>
Date: Mon, 01 Mar 2004 20:41:16 -0000

http://www.pesticide.org/imidacloprid.pdf

PERSISTENce AND RESISTANCE ARE KEY ISSUES!!!

Imidacloprid is a relatively new, systemic insecticide chemically
related to the tobacco toxin nicotine. Like nicotine,
it acts on the nervous system. Worldwide, it is considered to be one
of the insecticides used in the largest volume.
It has a wide diversity of uses: in agriculture, on turf, on pets,
and for household pests.
Symptoms of exposure to imidacloprid include apathy, labored
breathing, incoordination, emaciation, and
convulsions. Longer-term exposures cause reduced ability to gain
weight and thyroid lesions.
In studies of how imidacloprid affects reproduction, exposure of
pregnant laboratory animals resulted in more
frequent miscarriages and smaller offspring.
An agricultural imidacloprid product increased the incidence of a
kind of genetic damage called DNA adducts.
Imidacloprid is acutely toxic to some bird species, including
sparrows, quail, canaries, and pigeons. Partridges have
been poisoned and killed by agricultural use of imidacloprid. It has
also caused eggshell thinning.
The growth and size of shrimp are affected by imidacloprid
concentrations of less than one part per billion (ppb).
Shrimp and crustaceans are killed by concentration of less than 60
ppb.
Imidacloprid is persistent. In a field test in Minnesota, the
concentration of imidacloprid did not decrease for a year
following treatment. It is also mobile in soil, so is considered by
the U.S. Environmental Protection Agency to be a
potential water contaminant.
The development of resistance to imidacloprid by pest insects is a
significant concern. In Michigan potato fields, the
Colorado potato beetle developed resistance to imidacloprid after
just two years of use.




--- In compost_tea_at_yahoogroups.com, "tomjasz" <tom_at_l...> wrote:
>
> Bottom line.... this is an insecticide and it's use will keep us in
> the continuous cycle of overuse of pesticides herbicides and over-
> fertilization.




 
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Received on Mon Mar 01 2004 - 23:48:51 EST

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