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Date: | Mon, 14 Sep 2009 22:44:57 -0400 |
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I've read in an older British study ( will seek on net). That the imid
remains as residu and was found in bird eggshells as was DDT....
Has this new study addressed no residu at all?
On Sep 14, 2009, at 6:51 AM, Chris Slade <[log in to unmask]> wrote:
> Straying a little off topic, I wonder what happens to the birds in
> areas
> where insecticides are used. Their food supply may be reduced,
> thereby
> possibly reducing breeding success, and what they are feeding on as
> 'top
> predator' is likely to have a sub-lethal dose of chemicals. How
> many insects
> sub-lethally affected does it take to affect a swift lethally
> (haven't seen
> many of those around this year).
>
> Chris
>
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