Has anyone used diatomaceous earth directly on their dogs coat? I have used it on my carpets and my father inlaw puts it on his cattle and in their feed. I don't currently have a flea or tick problem but with a larger dog in the house again I would like to come up with something not quite as toxic as frontline.
Well, the pool grade earth is heat and chemically treated. There is a food grade earth that is supposed to be a natural pesticide, trace element supplement for live stock, and internal parasite insecticide.
As far as I know diatomaceous earth kills not by being poison, but the fact it's make up of microscopic sea shells, from diatoms, it actually cuts the exoskeleton of insects and such and they dehydrate from fluid loss.