Joined: Tue Mar 18, 2003 3:45 pm Posts: 2884 Location: San Antonio,TEXAS
Boric acid seems to be one of the safest dusts you can use to kill cockroaches. It is extremely effective indoors or in a garage. Don't use it directly on soil, though. Boron poisoning can happen very quickly and seems to be irreversable.
_________________ David Hall Moderator Dirt Doctor Lawns Forum
Joined: Mon Aug 25, 2003 3:12 pm Posts: 111 Location: San Antonio,TEXAS
Just adding to an old post. When I renovated my house, I spread copious amounts of Boric Acid in the walls, Everywhere I could, then covered it up with the sheet rock. I have not had an insect problem it three years. The Boric Acid is great at killing ants, roaches, etc.. it is inert, and just stays there. The only precaution I have is use a respirator when spreading, the dust can be harmful if inhaled. I thought the Boric acid thing was just another wives tale as my mother in law told me about it after reading it in the Helpful hints from Helouise column. She was right. IT WORKS.
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