Hi there, and thanks for your comments.
The update is that when i brushed the dog with the difficult coat, 2 days after dusting him with DE, the comb caught a few feeble, anaemic looking fleas. usually i have to be quick to catch the fleas on the comb with a pice of tissue - but these just sat there. I've never seen an anaemic looking flea before - they were pale orangy-brown . . .
I've done some more research and will have to treat the dogs and bedding every 4 days until completely clear to allow for the eggs and larvae of fleas that will be coming up through the life cycle.
Also, a level teaspoon a day for a small dog and a heaped teaspoon a day for a medium sized dog and a tablespoon a day for a huge dog is the recommended dose, sprinkled on their food, to kill and prevent worms.
For humans it has all sorts of benefits - lowers cholesterol and blood pressure, helps with weight control, joint pain plus loads more stuff. Good face cleanser . . .
You have to buy the "food grade DE" - there are different types, but the food grade does all the above and more, see :-
http://www.earthworkshealth.com/pets-animals.php
http://www.earthworkshealth.com/How-Diat...-Works.php
and
http://freshwaterorganics.com/human.html
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