Mugwort...worm wood. I read that Mugwort deters mites and fleas. Some people sleep with the herp in their pillows. I was going to try growing some in my yard as well as other herbs that deter bugs and mites. Dr. Ben's cedar oil yard guard also works for me, and non toxic. I assume, like me, that some of the problem is coming from your environment. So best to spray the inside of your house with Dr. Ben's evictor for interior before treating the exterior with yard guard.