I am building a new coop for my first flock. When I was in the Marine Corps our camouflage uniforms were pre-treated with permethrin to repel bugs. The permethrin bonds to the fabric when dry and did not present a danger to the skin. It even lasts through several washings. I am using large dowels as perches. I am considering spraying them with Permethrin and allowing them a few weeks to dry. My thought is that if I were to get mites, they would most likely move from bird to bird on the perch at night. As such, the treated perch would be an effective, safe insect preventative. Thoughts?