When ever you start a new cycle spray kr bomb the room down , no plants in it, I personally would use avid and blast the room down , do not put it on the pla ts although everyone here who has eaten any type lf fruit have already had a pile lf avid in their food and it has a half life of around a month , half life does not mean half life , it means the chemical has dissipated enough to where there is almost nothing left. (See Merk index)and not harmful to humans at that point , many people freak out at the word avid , a much cheaper alternantive to avid is called Lucid and it is the same avid , do not spray your plants or the stink foot hippy brigade will be all over you, just your room, method one is a organic mite killer , it is not systemic ,you will have to use it everyday for some time. Go around tge outside peremiter of your grow area with powdered bug repellents , do this about once a month to keep them from comming into the grow , not letting people or animals intk the grow has already been mentioned , always be clean in your grow area , temperature drops at night will also keep them from hatching , it will also improve thc content and resin production.
A good grower rarely has any of these problems because he is pro active , he does things to keep these problems from happening before they happen , after they happen then it's to late, production and quality has already been effected by the time the grower deals with the problem .
Good luck ,