434 Yearbook of the Department of Agriculture, 1020. 



County. Idaho, in May. 1!M!). The canal is 20 miles long and 

 draws 1S.000 inches of water, which is used in supplying 

 about 30,000 acres of land. To repair this break cost the com- 

 pany $5,000, and during the interval before repairs could be 

 completed drought caused a loss of 2o per cent of the hay 

 crop, for the, growth of which the irrigation water was in- 

 tended. Important campaigns are now in progress in irri- 

 gated sections with a view to overcoming such losses. 



BI705M 



A Costly I'ockct-Oopber Burrow, 



P.rcak in l>ank of irrigation canal caused by pockot gopher. Besides a bill of 

 |ij,000 for repairs, 25 per cent of the hay crop on 30,000 acres was lost, 

 owing to lack of water, occasioned by the break, at a critical time during the 

 growing period. 



Getting Jnck Rabbits With Poison and Drives. 



Where jack rabbits are abundant they are responsible for 

 heavy losses of farm crops and range grasses. Many in- 

 stances have occurred where entire fields of grain were cut 

 down and absolutely destroyed by these animals, and farmers 

 stated that it would be necessary to abandon their farms un- 

 less the ravages could be stopped. During the summer jack 

 rabbits frequently gather in great numbers in grain and al- 

 falfa fields. Under such conditions they may completely 

 devastate great areas of growing grain or eat out the crowns 



