I have not heard of the play dead collars either.
I will look into it. And you are right, the natural oil is called Neem oil. Our vet recommends the Frontline + and like Mary mentioned I think I will get it from the vet. I ordered the Advantix on line so that may be part of the problem. Plus the dosage only went up to 50lbs and above,where the Frontline has a catagory for 100lbs plus.
The Neem oil sounds good if it works, but not sure how I could spread it evenly enough through their double coats.
My vet is not worried about Lyme out here, I guess it's not prevalent in Eastern Washington, but honestly what nasty things.
Almost makes me wish for the days when we lived on military bases and every spring big trucks would roll through housing spraying huge clouds of DDT. Can you believe we used to play hide and seek in that stuff??
Thanks for all the ideas.