SELECTION AND MANAGEMENT 111 



sheep soak in the dip for two minutes, first having 

 rubbed and loosened up the scabs. After ten days 

 dip again; always turn freshly dipped sheep into 

 their sheds so that they may rub their wet fleeces 

 against the woodwork and disinfect that. 



Dip the whole flock every spring if there are ticks, 

 immediately after shearing, being sure that no sheep 

 or lamb escapes. 



After the flock is clean it will remain clean if 

 newly bought sheep are dipped before being added 

 to it. There is no necessity to dip a clean flock. 



At shearing time should the owner shear his own 

 sheep and there be but two or three ticks to each 

 animal, he should cut them in two with the shears 

 and dip the lambs. 



It is useless to dip sheep that are clean of 

 vermin, besides it may slightly injure the wool. 

 I have seen whole neighborhoods in Michigan 

 where now no one dips (once many did), and 

 where yet there are no ticks. The reason is that 

 these men having warm shelters shear before lamb- 

 ing, often in March, and if there should be a few 

 ticks, they can be cut off or, very likely, the sheep 

 itself will pick them off before the lambs are born. 

 To shear after lambing and without dipping is the 

 surest way to breed ticks, since they take refuge on 

 the lambs as soon as the ewes are shorn. 



There is no more need of having ticks on a sheep 

 farm than there is of wolves. The wolves have 

 largely been killed off in the older settled regions, 

 but it has required persistent and well organized 



