FOREST SERVICE. 401 



Bureau of Animal Industry while disease exists upon outside ranges 

 occupied for a part of the year by permitted stocK, The Bureau of 

 Animal Industry makes a rigid inspection of exposed stock before 

 its admission to Forest ranges, while the Forest Service requires all 

 permittees to submit to such inspection and show a certificate of 

 freedom of their stock from disease before it is allowed to enter a 

 Forest, 



Inspection of sheep against scab was necessary only upon certain 

 Forests in Colorado, California, Nevada, Utah, Arizona, and New 

 Mexico, and in general the Forests are becoming free from scab. Tlie 

 lip and leg disease threatened to become epidemic in the State of 

 Wyoming during the spring. Inspection by the Bureau of Animal 

 Industry of all sheep using National Forest ranges within tliat State, 

 except in Fremont County, was required. The Forest lands were 

 thus kept free from contagion. 



The Texas fever tick now occurs only on the Cleveland National 

 Forest in California, the Wichita National Forest in Oklahoma, and 

 the Arkansas and Ozark National Forests in Arkansas. On the 

 Cleveland Forest it is confined to a small area along the international 

 boundary line. A fence along the boundary which will be con- 

 structed by the Bureau of Animal Industry, to prevent the intrusion 

 of tick-infested cattle from the Mexican side, will assist in eradication 

 of the tick and prevent reinfestation. The Wichita Forest has be(>n 

 found to be seriously infected. Although it lies south of the Bureau 

 of Animal Industry's quarantine line, it has been deemed best to 

 take active steps to eradicate the tick. Tliis will necessitate the 

 abandonment of parts of the Forest for grazing purposes for one or 

 more 3''ears. Upon the Arkansas and Ozark Forests the presence of 

 the fever tick has not only reduced the grazing value of the Forest 

 lands, but also seriously complicated the administration of the Forests, 

 because of current local belief that the tick can be controlled by 

 burning the land over each year. The Bureau of Animal Industry 

 holds that such burning of the woods does not exterminate the tick or 

 prevent its spread, and lias taken such steps as lay within its power to 

 counteract the wrong belief to the contrary. 



The demand of Forest users for blackleg vaccine was about the 

 same as in 1009. Use of the vaccine, which is furnished by the 

 Bureau of Animal Industry upon the recommendation of the Forest 

 Service, has materially rechiced the loss of National Forest stock 

 through blackleg. 



By enforcing State quarantine regulations, the Forest Service has 

 worked in harmony with the stock sanitary boards of the different 

 National Forest States. 



73477°— AGB 1910 26 



