My wife soaks garlic in water until its well smelly, then strains it and puts it in a plant mister and sprays the plants.
It works very well at upsetting/deterring insects and mites.
The funniest thing is my friend and I used the sprayer when we where laying on and polishing plaster one day.
My friend was constantly commenting on the braw smell of sausages my wife was cooking.
Turns out it was the garlic smell was going into the plaster.
Wall doesn't smell now its been sealed and painted.
But i bet we dont get any infestations in that wall.
The best of all the room is now our kitchen!
Result!