8 HOW TO GET Tin: last tick. 



The time that elapses between the attachment of 

 the tick as a seed tick and its dropping from the 

 animal as a fully engorged female is generally about 

 3 weeks. The greatest length of time that a tick 

 has been observed to stay on an animal is 66 days. 



METHODS OF ERADICATION. 



With an understanding of the life history and de- 

 velopment of ticks, it is evident that they may be 

 attacked in two locations, namely, on the pasture 

 and on the cattle. Pastures may be rendered tick- 

 free by excluding all cattle, horses, and mules until 

 all ticks have died from starvation, or by the more 

 common practice of permitting the cattle to remain 

 on the infested pasture and disinfecting them at regu- 

 lar intervals in an arsenical bath, thus preventing 

 the maturing of the tick on the cattle and reinfesta- 

 tion of the pasture. The seed ticks on the pasture, 

 or those which hatch from eggs laid by females on 

 the ground before dipping begins, will in time starve 

 out, or, if they get upon the cattle, will be destroyed 

 by the dipping. 



This brings up the question of the time required to 

 kill ticks by starvation, and the following table, 

 which was prepared after careful investigation, is 

 quoted from Farmers' Bulletin No. 498, "Extermi- 

 nation of the Texas-Fever Tick," United States De- 

 partment of Agriculture 4 , and may be depended upon 

 as a reliable answer to this question: 



