Perma-Guard Home Page Household Pesticide Pet & Animal Powder Plant & Garden Pesticide protect your stored grain Frequently Asked Questions

Frequently Asked Questions


What is Diatomaceous Earth? Click to find out!

What is Fossil Shell Flour made of? Click to see.


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. products.

Is DE Hazardous?

Excerpt from The IPM Practitioner, Monitoring the Field of Pest Management, William Quarles, Volume XIV, Number 5/6, May/June 1992.

"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 animals.

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 abnormalities.

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."


Do you have any testimonials on this website?

Yes. Click here.




U.S. Headquarters:

Perma-Guard Inc.

Albuquerque, New Mexico

U. S. A.


Taiwan & China  Distributor:

JCE Organic

Alhambra, CA 91801, USA

Skype: tungpinchiu


Taiwan Perma-Guard Co., Ltd.

Kaohsiung, Taiwan


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All rights reserved.