Garden Product: Diatomaceous Earth (DE) for Organic Pest Control

DE also comes in food grade formulations,
however, the particles are small enough for
human inhalation when attempting
to treat bedbugs. Use the DE ant formula!

Diatomaceous Earth (DE) is a dust-like product that contains the crushed fossilized algae (diatoms) from fresh water. These crushed diatoms feel like powder when we rub it in our hand. But it’s very sharp to insects with delicate exoskeletons. When you apply DE, dust is ingested by the crawling insect or the insect crosses through the powder. The DE will cut their exoskeleton. This causes the insect to dehydrate and die. Insects cannot develop a resistance to it since there are no chemicals to which they can build up immunity. Not all DE is the same. This DE is made of Silicon Dioxide. This comes from a freshwater source. It is the same type as used in food-grade diatomaceous earth. Be careful of products made of Diatomite DE. It is made from unnatural sources.   

• Diatomaceous earth dust kills ants by dehydration or ingestion
• Treats up to 250 sq. ft.
• Powder is ready to use directly from the container
• Odorless to avoid a sharp insecticide smell
• Chemically inert to help protect the environment
• Organic Materials Review Institute (OMRI) listed

http://www.homedepot.com/p/Safer-Brand-4-lb-Diatomaceous-Earth-Ant-and-Crawling-Insect-Killer-51702/202743025?MERCH=REC-_-SearchPLPHorizontal1_rr-_-NA-_-202743025-_-N