4:?f» Yearbook of the Department of Agriculture^ 1020. 



on a considerable scale, were conducted under the leadership 

 of Biological Survey Hold representatives in cooperation 

 with local agencies. The animals were destroyed through 

 the use of poison and also by driving them between con- 

 verging fences into inclosuros where they were killed. In 

 Idaho a total of 40,000 rabbits were killed in Minidoka 

 County: and an average of 100 rabbits for each ounce of 

 strychnine used was reported in Lincoln County. Two 

 fanners in Gooding County reported killing 1,000 jack rab- 

 bits with each ounce of strychnine. The organized drive 

 also accounted for great numbers. Seven drives conducted 

 in Bingham County, Idaho, netted 15,728 rabbits. Other 

 notable kills through county drives in the State were 5,500 

 rabbits in Gooding County, 17,800 in Jerome, 20.000 in Lin- 

 coln, and 19,000 in Minidoka. One drive in Washington 

 County resulted in killing 10,000 animals. 



Practically complete protection of crops was effected dur- 

 ing the season of 1020. according to reports received from 



8IT06M 



Damage to Orchards by Rodents. 



Roots of orchard trees arc cut off and trees killed by pocket gophers and pine 

 mice; the hark is gnawed from the trunk by jack rabbits, cottontails, and 

 meadow mice; and nuts and fruits are frequently eaten and destroyed by 

 ground squirrels, two of which arc here pictured, poisoned at their burrow at 

 the root of an orchard tree. 



