676 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



culture and the authorities in several of the southern states have 

 worked out a plan whereby it is possible to eradicate the tick from 

 the entire Texas fever area. This makes use of the habits of the 

 ticks and the fact that they have no alternate host. The general 

 scheme is a system of rotation of pastures. Cattle are removed 

 from infested pastures, dipped to free them from ticks remaining 

 on them or not, depending upon the number of pastures available. 



FIG. 595. Plan for freeing cattle and pastures from ticks by rotation, 

 requiring four months, with new pasture, U. S. Dept. of Agr. 



The infested pasture is then plowed up or allowed to remain idle 

 for some four months by the end of which time all ticks in it will 

 have died. If there are tick free pastures available, the cattle 

 from the first pasture may be dipped to kill the ticks upon them 

 and then placed in the tick-free pasture, care being taken not to 

 introduce, at any time, tick-carrying cattle into this pasture 



