Been using a few years ago, it really works and old timers will agree :-)
Works great ! Nasty taste according to cats tho
my birds loves these minerals. the breeding pairs go thru these like crazy.
My hen is no longer sneezing or coughing.
Food Grade Diatomaceous Earth
Natural diatomaceous earth is safe and can be used on birds as well as on the loft floor for prevention and treatment of external mites and lice. Can also be used in the grain to protect from spoilage due to insects and moisture.
Use: Sprinkle thru feathers of birds, in nestboxes, on loft floor, or add at a rate of 2% to grain.
For poultry also add to their favorite dust bathing sites.
Size: 2 lbs