Diatomaceous Earth, from The Green Life Soil Co.

Diatomaceous Earth:

Made from the fossilised remnants of single-cell algae (diatoms), Diatomaceous Earth has a multitude of uses in the organic garden. DE is composed of silica and other trace elements, and is extremely absorbant. It's microscopic structure has many sharp edges. It can be dusted, sprinkled, raked, mixed with water and sprayed over plants or around the house, chook pen , kennel and garden.  DE will continue to work as long as it is present in the environment. 

Green Life Soil Co.'s Diatomaceous Earth is a raw and untreated product - allowable for animal supplements but not approved for human consumption. This is not pool filtered DE, which is chemically treated and poisonous.

Sourced from WA. 

6kg in Bucket

Benefits:

• increases water holding capacity and aids nutrient retention in soils
• encourages beneficial microbial soil activity
• boosts plant tissue strength, meaning more pest and disease resistance
• converts locked up phosphorous into a plant available form
• decreases soil salinity by diluting sodium content
• assists in controlling odours in compost heaps, and will not harm earth worms if sprinkled over the surface
• deodorises and absorbs odours from chook pens, kennels, etc

Note: 

We are not allowed to make claims that DE is a pest control product under the Agricultural and Veterinary Chemicals Code Act 1994 ('Agvet Code') as DE is not a registered chemical product. If you are looking at information about how people around the world have used DE, please Google it or consult organic gardening books, websites or forums. I think we are allowed to say from our experience insects don't seem to like it.

Health Warning:

Care should be taken when using DE.  Wear a dust mask, eye protection and gloves.  While it is non toxic the tiny particles can be drying to skin and hands, and harmful if inhaled.  Always wash hands after use.