Gotcha, I'm hungover and you were being way to cryptic!
DE is a good product, no allegedly about it. The mechanical control aspect ensures resistance is kept to a minimum, at least for the time being.
For fleas treatments, as the thread suggests, there are better ways as you know. DE acts as a decent, barrier, but I've never used it as part of flea treatment, and I don't see how it could be a valid treatment for a parasitic insect without first treating the animal, with something like fipronil. For other insects it's an effective, and cheap, alternative to contact dusts/powders. As wi