ASIDE from the chicken tick and the sticktight flea, 

 the most important external parasites of fowls are 

 the common red mite, the scaly-leg mite, and various 

 lice. 



The common mite sucks blood from the fowls and breeds 

 in the cracks of the roosts and buildings. It may be destroyed 

 by two or three applications of crude petroleum or one of the 

 commercial carbolineums to the roosts and buildings. 



Scaly leg is caused by a small mite which may be de- 

 stroyed by dipping the legs in crude petroleum. 



In addition to a description of mites and lice this bulletin 

 tells of a new but cheap and effective insecticide for use in 

 destroying poultry lice. It is sodium fluorid, a white powder, 

 which can be obtained through druggists. A single applica- 

 tion, which costs about half a cent, will destroy all of the lice 

 on a bird. Hundreds of fowls have been treated in the experi- 

 ments conducted, but no injury whatever to them has occurred. 

 Full instructions regarding methods of application are given 

 in the bulletin. 



Care in its use to avoid burning of the hands is advised. 



