What is Fossil Shell Flour made of?
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Do EPA Registrations apply to this product?
EPA (The Environmental Protection Agency) was formed by Congress for
the purpose of registering and regulating the use and sale of toxic
materials. Probably the most important thing they oversee for the health
and safety of the nation are insecticides, herbicides and fungicides.
For example, anyone wanting to market a product claiming to kill
insects must apply to EPA for a registration number, with acceptable
data presented. On acceptance by EPA, a number is assigned to the
product and the manufacturer can begin production and sales.
Any product offered for insect control not having an EPA number is in
violation of the law and the seller can be subject to serious penalties.
The EPA has all the necessary registrations for Perma-Guard, Inc.
Is DE Hazardous?
Excerpt from The IPM Practitioner, Monitoring the Field
of Pest Management, William Quarles, Volume XIV, Number 5/6,
"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, sifted 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 non-crystalline silica is not a hazard as the
human body apparently can dissolve it."
"Ingestion of diatomaceous earth is not toxic to mammals. Rats fed
a daily diet containing 5% freshwater diatomaceous earth show no
abnormalities after 90 days (Bertke 1964). Dairy farms sometimes feed
their animals food containing 1 to 2% diatomaceous earth to control
worms and other internal parasites (Allen 1972). Impoverished humans
add "fossil flour" to their baked goods in order to stretch their
flour supply (Cummins 1975). It is so safe for use on food that the
FDA has exempted diatomaceous earth from requirements of fixed residue
levels when added to stored grain (Fed. Reg. 1961). The U.S. EPA also
allows its use in food storage and processing areas (Fed. Reg. 1981)."
The Food and Drug Administration, Department of Health, Education and
Welfare, sets "tolerances" on poisonous chemical insecticides because
residues of these insecticides are known to cause cancer and other
alarming physiological effects when introduced into the bodies of test
The Department of Agriculture in Michigan said in a letter:
"Our animal pathologist has examined the vital organs and
intestinal components submitted, both macroscopically and
microscopically, and has found no visible evidence of organ
These components consisted of brain, thyroid, rib section, lung,
heart, liver, true stomach, small intestine section, large intestine
section, pancreas, kidney, bladder, and forestomach.
These organs were submitted under affidavit as being from a
slaughtered dairy cow having free choice access to fossil shell flour
for approximately five years."
The University of Arkansas did a study to determine whether the
addition of diatomaceous earth was harmful to chickens. Their
conclusion: "It posed no threat."
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