Diatomaceous earth is proven to be effective over time with regular use in controlling external parasites on your chickens, such as mites, fleas, lice and other external parasites that might infest feather follicles. It is also effective for some internal parasites and can supplement minerals in the diet. If you have hens that aren't laying too well, it may be caused by parasites.
Which pests does diatomaceous earth control?
Internal parasites, Mites, Fleas, ticks, ants, roaches, spiders and scorpions, aphids, termites and flies and fly larvae. It only works through contact so the insect needs to be in contact with the DE.
Diatom can control Red-Mite in Poultry Houses if it is thoroughly applied to walls, floors, perches and nest boxes/cages at 50g per square metre. A 2kg tub will treat a backyard flock and coop several times over. Diatom is odourless and non-toxic so poses no danger to the birds.