. Death to the rodents. 428 Yearbook of the Department of Agriculture, W20. men hov to protect crops and hay from destruction by jack rabbits. During 1016, L,356,429 acres of Government land- were given original treatment for the eradication of prairie dogs, and 164,756 acres, previously poisoned, were given a second treatment to complete the work: 208,950 acres were treated for the destruction of ground squirrels; and 7,770 acres for the extermination of pocket gophers. Some demonstration work also was done to enable farmers and ranchmen to apply on their own lands the methods which the Biolo
. Death to the rodents. 428 Yearbook of the Department of Agriculture, W20. men hov to protect crops and hay from destruction by jack rabbits. During 1016, L,356,429 acres of Government land- were given original treatment for the eradication of prairie dogs, and 164,756 acres, previously poisoned, were given a second treatment to complete the work: 208,950 acres were treated for the destruction of ground squirrels; and 7,770 acres for the extermination of pocket gophers. Some demonstration work also was done to enable farmers and ranchmen to apply on their own lands the methods which the Biological Survey. BI97I2 Results of Poison Properly Prepared and Distributed, Pile of 1,872 prairie dogs, picked up on 320 acres after poison was dis- tributed by men working according to directions of the Biological Survey. A large percentage of animals killed were not collected, as they entered the burrows before the poison could act. The grass required to feed these animals is sufficient for the maintenance of several he-ad of cattle or sheep. Results such as this have convinced stockmen and farmers that this work is practical and worth while as a means of increasing production. bad found most effective in eradicating rodent pests on Fed- eral lands. Demonstrations were given and campaigns or- ganized to combat jack rabbits in infested farming commu- nities of southern Idaho, central and eastern Oregon, south- western Ftah, northern Nevada, western Texas, and in smaller areas in California. Extermination of rodents tbat destroy seeds and nursery stock on areas being reforested had been completed on the Black Hills National Forest, S. Dak., and the Florida National Forest, Fla. Experiments to devise eradication methods had been conducted on the above planting areas and on the Converse Experiment Sta-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not
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