Johnson's Poultry Mite & Lice Powder kills mites, lice and fleas by destroying the waxy coating present on insects. Suitable for use on the birds directly and also in the coops and bedding areas. Natural organic formulation using diatomaceous earth powder which works by causing the insect pests to dehydrate. Safe enough to be used on laying chickens, turkeys and ducks etc while you can still eat the eggs. This product absorbs moisture, creating a dry environment discouraging the damp habitats where crawling insects thrive. Ideal for poultry such as chickens, turkeys, ducks etc. It is a natural, non-toxic diatomaceous earth. Use early in the day to prevent birds inhaling any powder whilst sleeping. Apply powder carefully & evenly, avoid eyes, apply directly using 3-4g powder per bird. Repeat weekly if necessary, sprinkle powder in chicken coops, housing & other places where mite and lice may live.