08-09-2007, 03:55 AM
I looked into DE (diatomaceous earth) several years ago and remember the pool type was not recommended. I thought it was supposed to be less effective. However checking the Web at:
http://www.ghorganics.com/DiatomaceousEarth.html
I found the following:
In an article on DE in COMMON SENSE PEST CONTROL QUARTERLY, published by BIRC, Volume III, Number 1, Winter 1987, the matter of safety is explored.
“Both swimming pool grade and natural diatomaceous earth come from the same fossil sources but they are processed differently. The natural grades are mined, dried, ground, sled and bagged. The pool grade is chemically treated and partially melted and consequently contains crystalline silica which can be a respiratory hazard. Thus, IT IS IMPERATIVE THAT ONLY NATURAL DIATOMACEOUS EARTH BE USED FOR INSECT CONTROL. This noncrystalline silica is not a hazard as the human body apparently can dissolve it. “
These people are selling a product, so take this information in that light.
Allen
Baton Rouge, LA & HPP
http://www.ghorganics.com/DiatomaceousEarth.html
I found the following:
In an article on DE in COMMON SENSE PEST CONTROL QUARTERLY, published by BIRC, Volume III, Number 1, Winter 1987, the matter of safety is explored.
“Both swimming pool grade and natural diatomaceous earth come from the same fossil sources but they are processed differently. The natural grades are mined, dried, ground, sled and bagged. The pool grade is chemically treated and partially melted and consequently contains crystalline silica which can be a respiratory hazard. Thus, IT IS IMPERATIVE THAT ONLY NATURAL DIATOMACEOUS EARTH BE USED FOR INSECT CONTROL. This noncrystalline silica is not a hazard as the human body apparently can dissolve it. “
These people are selling a product, so take this information in that light.
Allen
Baton Rouge, LA & HPP
Allen
Finally in HPP
Finally in HPP