Just found mites on one of my birds, the 8 year old Buff Orp. We dusted all the birds (only have four) with permethrin and now I'm wondering how to do the chicken house. Should I take all the straw out and put permethrin dust down and get a new bale or just replace the floor and nest/sleeping area straw with straw from bale that's been in the house. I guess my question is, will the mites be in the unopened bale of straw in the house?