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Old 03-23-2011, 10:52 AM
  #10  
Ramona Byrd
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Join Date: May 2009
Location: Merced, CA
Posts: 4,188
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Boric Acid and Diatomaceous Earth, mixed. The Boric Acid is poisonous, and the Diatomaceous Earth is like microscopic sharp shards of glass that cut the insects and they dehydrate. It's also called a mechanical insecticide.
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