Diatomaceous earth - your thoughts

Okay, so this probably isn't the right Forum topic but I couldn't think where to put it.
I want to use Diatomaceous earth as an insecticide. The cat has had a bout of fleas and I think the chickens might have them too. Looking into it, I think I could use it as a slug and snail killer and use it for red mite in the coop too.
What kind of damage could it do?
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You use diatomaceous earth on your cat?!
lol no - frontline
I use it for my chickens all the time and was told that it was good for slugs and snails but its too expensive to use on the garden!
Probably mites/lice on the chickens. Can be debilitating if it is a bad infestation.
Louse powder is what you need.
I wouldn't waste it on slugs.
what is diatomaceous earth??
It's ground up prehistoric diatoms, little single-celled things that floated round in the primordial soup. Much like the sort of soup I make. It all ended up caked together and turned into a type of stone, I think, like limestone is made out of old sea shells.
End of waterbutts's knowledge.
I think it works by dessicating insects
I'm sure you are right Farmergeddun.
Big fan of D.E. here, for delousing my lovely ladies