rpHE SHEEP TICK, while not a true tick, is a 

 -^ blood-sucking parasite which infests sheep on 

 both farms and ranges. It is widely prevalent and 

 spreads rapidly, especially among the close-herded 

 range flocks, where it may cause much damage and 

 loss. The nature and habits of the tick arc described, 

 also methods of identifying it. 



The only practicable way of destroying the pest is 

 by dipping the sheep. Two dippings are necessaiy, 

 about 21 days apart, as the first dipping may not destroy 

 all the pupa? (eggs), and these may subsequently hatch 

 a new brood. 



Several kinds of dips are used successfully. Of the 

 home-made dips the one found to be most efficacious 

 is the lime-sulphur-arsenic dip. Full directions for 

 making this dip are given in this bulletin. Methods of 

 dipping large and small flocks are discussed, including 

 plans of a wooden and a cement vat, showing details of 

 construction. 



