This chicken dust bath mixes sand, peat moss, wood ash, and diatomaceous earth into a dry, fluffy bath that helps hens keep their feathers clean and mites down. Set it somewhere covered so it stays dry all year.
Make sure the wood ash is completely cold, then sift it through hardware cloth or a sieve to remove any chunks of charcoal.
Pour the sand and peat moss into a wide, shallow container, and mix them with a trowel, breaking up any clumps of peat.
Add the wood ash and diatomaceous earth, and fold them in gently until the mix is an even color, keeping the dust down as you work.
Set the dust bath in a dry, covered spot where the hens already spend time.
Scoop out droppings as needed, top up the mix as it gets low, and replace it when it's damp or packed down.
Notes
Ratio: By volume, use 4 parts sand, 4 parts peat moss, 2 parts wood ash, and 1 part diatomaceous earth. One batch adds up to about 5 1/2 gallons before mixing, enough to fill an 18 1/2-inch rubber tub about 4 to 5 inches deep.Wood ash: Use only cold ash from clean, untreated firewood, never ash from garbage, painted wood, or pressure-treated wood. Wood ash is alkaline enough to irritate skin, so keep it a smaller share of the mix.Diatomaceous earth: Use food-grade diatomaceous earth, never pool filter diatomaceous earth. Wear a dust mask while you mix it in.Kaolin clay: Kaolin clay can replace some or all of the diatomaceous earth.What to leave out: Don't add pickling lime or hydrated lime, which can burn skin and eyes.Placement: Keep the dust bath under cover. Rain turns it to mud, and a wet mix packs down.Upkeep: Leave it out year-round, since mites can rebound once a dust bath is gone.
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