Diatomaceous Earth (or DE powder for short) is a completely natural internal and external parasite control for birds, pets and livestock along with things like purifying water and polishing metal. It is produced from diatomite, which is a sedimentary rock composed of silica shell remains of single-cell aquatic plants called diatoms. The woven composition of the shells of the diatoms means that they soak up huge amounts of water, oils and smells. Diatomaceous Earth works on parasites by sucking the liquids and lipids from their skin causing them to dehydrate and die.
For all you chicken owners out there, Diatomaceous Earth is perfect for controlling red mite in your poultry houses. Just use the puffer bottle to disperse the powder, paying particular attention to corners, the underneath of perches and nest boxes.
In addition to being used for external parasites, Diatomaceous Earth can be used as a feed additive to reduce or eliminate parasitic worms in the guts of animals. For chickens add 5% to their daily rations, cats/small dogs 1 small teaspoon per day and large dogs (over 25kg) 1 tablespoon per day.
Diatomaceous Earth is also great for use in wormeries as it keeps flies at bay, but doesn't harm the worms.