INFECTIOUS DISEASES OF CATTLE. 



497 



also greatly reduce the danger of ticks being washed from one 2:>as- 

 tnre to the other during rains. 



Plan requiring four and one-half months. — The plan of rotation 

 represented in figure 1 requires four and a half months for its corn- 



nao N0.2B. 



OCT 12. novE JHEHERD. 

 TO FIELD N0.3. 



OATS FOiLOWED BY 



■ " 'coVTp'E/FS^oTf oTtr^'K 



rOBflGE. 



FIELD N0.2A. 

 6EPT22.M0VETHE 

 HEF^D TO FIELD 

 NO 2 B 



HELD N0.3. 

 CORN. 

 COlVPEyiS. 



NOV. I. MOVE THEHEF^D TO 



FIELD NO. 



FIELD NO. 4: 

 COTTON. 

 nrE OR CRIMSON 

 CLOVER 



P/i^TUFiE 



BERMUD/i ^\/ET,CH,/IND BUR CLOVER. 



FIELD NO. I B. 

 SETPT 2. MOVE THE HERD TO FIELD 

 NQ.2A. KEEP OUT ALL RNIM/iLS 

 UNTIL JULY l.l^HEN THIS FIELD 

 MLL BE FREE OF TICKS /iND THE 

 TEMPOR/IRY DOUBLE FENCE M/IY BE 

 REMO\/£0. 



1 FIELD NO. I R. 



\ JUNE 15. MOVE THEHEF^D TO FIELD 

 \N0.IB. keep out /ill /INIM/iL5 

 FROM THI3D/ITE UNTIL NOVI.UIHEN 

 TH/5 FIELD l^ILL BE, FREE OF T/CKS. 



Fio. 1. — Plan for freeing cattle and pastures from ticks by rotation, requiring four and 

 one-half months. 



pletion. Some time during the spring the pasture is divided in the 

 middle by two lines of temporary fence 15 feet apart. The herd is 

 first confined in field No. lA. On June 15 it is moved from this por- 

 tion of the pasture to the other portion, designated field No. IB, and 

 16923"— 12 32 



