For certain pests, like bed bugs, testing is required to show that the product is effective under ideal circumstances. When up to 2% is added to food, diatomaceous earth is generally recognized as safe by the US Food & Drug Administration. However, pest control uses typically involve spreading a more concentrated product within a home.
Diatomaceous earth is a great tool in a bed bug treatment, as long as you are aware of what it's for and what its limitations are. DE will not get rid of your bed bug problem by itself (no product will), but it is an important part of an integrated process that involves a wider range of treatment methods, like steam, encasements, and sprays.
Diatomaceous Earth is a naturally occurring mineral composed of the fossilized remains of diatoms, tiny micro-organisms that lived in large bodies of water. This clay is mined and crumbled into a fine powder which can be used for many purposes including the removal of bed bugs.
Safer Brand Diatomaceous Earth Bed Bug, Flea, Ant, Crawling Insect Killer, 4 lb. is rated 4.9 out of 5 by 8. Rated 5 out of 5 by heckno from Good stuff Excellent - does what supposed to do.
Works indoors and outdoors when kept dry. Diatomaceous earth-based powder is a highly effective ant killer, 4 lb. re-sealable bag. Kills insects by ingestion/dehydration within 48 hours indoors or outdoors. Also for bed bug, cockroach, flea, earwig, silverfish, cricket, millipede and centipede control.
Diatomaceous earth with crystalline silica levels of above 1% of require additional labeling and warnings. Diatomaceous Earth Labeled for Pest Control. Diatomaceous earth labeled for pest control is NOT as safe as food grade. Pest Control DE usually has specific additives to attract pests into the dusts, which make them more dangerous to human health.