Cob: Re: diatomaceous earth

[David Knowlton]

what is the action against the insect? clogged spiracles? (breathing holes)

silicosis results from inhaling too much silica crystal. hardens the lining 
of
the lung and collapses it. nasty.


>From: "Amanda Peck" <ap615 at hotmail.com>
>Reply-To: "Amanda Peck" <ap615 at hotmail.com>
>To: coblist at deatech.com
>Subject: Re: Cob: Re: diatomaceous earth
>Date: Thu, 11 Sep 2003 09:06:03 -0500
>
>
>
>I'll jump in.  There's a big difference between "pool grade" and "food 
>grade."  This link says that the pool grade is chemically treated and 
>heated  to produce crystalline silica.  Nasty, potentially deadly (worse 
>yet, slow death), stuff to inhale.  The plain powdered food grade doesn't 
>seem to harm mammals at all, but can be mixed with grain to prevent insect 
>infestations, dusted on the dogs as flea powder, and so on.
>
>http://www.safesolutionsinc.com/de/hazard.htm
>
>..............
>From Mary Hooper in an exchange with Darel Henman
>What's the difference between one kind of diatomaceous earth and another?
>
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