My first mistake was that I had distributed the powder too cautious - just not enough! After a long heavy rain have become the red mite and lice reported - was my application error! From then on, I knew not mess big way, beautiful generous distribute in the barn and in the nests - and happy you are against the vermin. Just a handful of the nest to throw, the chicken-Popo then get even what from - helps prima in spring Lingen at the cloaca. Since my chickens are free range chickens and rainfall really great, they bring course the moisture in the barn, so powder regularly and check - very important.