I moved to a new block about 6 weeks ago and my poor dogs are getting hammered by fleas. I just gave them a (chemical) flea bath and five minutes later they are covered again even though they have flea collars on as well. The fleas are obviously in the soil here to the point that they are now biting me as well when I go outside. So I found an internet site recommending diatomaceous earth(sp?) which sounds like a good non-chemical option. So Im supposed to sprinkle it on the ground. It also says its "attractive" to horses. Is there any danger to my horse if he licks up this dust? And is "attractive" as in he will start licking up dirt to get to it? I understand it is used in some licks? But is there an amount where it becomes toxic?
Im really desparate to help my poor dogs so I would appreciate any advice at all! Thanks!