My hens have stopped laying a week ago which I assumed may be due to the heat. The heat has since died down and still no eggs.We live in upstate NY. I noticed this morning that three girls out of eight have very small grayish white clumps which I assume are lice on the tops of their throats. I use DE in their coops which I though was preventive. How and with what do I treat my birds and clean the coop. Is this the cause of their loss of production of eggs? Thanks in advance for any help or advice
