386 ANNUAL EEPOrvTS OF DEPArtTMENT OF AGRICULTURE. 



of feeding were advocated for the increase of both the egg and meat 

 supply. The Dairy Division through its extension specialist con- 

 tinued the cottage cheese production and consumption campaign of 

 the previous year, and increased its efforts in the organizing of cow- 

 testing associations, bull associations, and dairy manufacture. The 

 specialists in charge of animal disease work were engaged particu- 

 larly in educational methods for the prevention of hog cholera in 

 many of the hog-producing States. These specialists were working 

 in cooperation with the regulatory men and State extension services 

 in assisting county agents in making demonstrations of control 

 methods. 



The specialists of the Bureau of Plant Industry continued the 

 campaign to eradicate the common barberry to prevent rust on wheat 

 and entered more vigorously into that against cereal smuts. This 

 work was conducted by squads of" demonstrators on seed treatment 

 and barberry identification. One jiorticultural extension specialist 

 assisted in the preparation of material for boys' and girls' garden 

 clubs and in making a study of extension methods in conducting 

 pomological extension- work in the States. A specialist on vegetable 

 gardening assisted in the preparation of material for boys' and girls' 

 (^lubs and in making plans for the farmer's home garden. Some 

 assistance Avas given by this person to the commercial growers and 

 canners of tomatoes, peas, and other A^egetables. 



Tlic Bureau of Biological Survey employed a specialist who con- 

 ducted work in the Great Plains and the States farther west on the 

 control of rodent pests in cooperation with the county agents and 

 other State forces. 



I'he Bureau of Entomology employed a specialist to conduct its 

 emergency extension Avork in the control of insect pests and in the 

 production of hone}^ Very successful campaigns for the control of 

 crickets were carried on in Oregon and Washington and for the con- 

 trol of grasshoppers and chinch bugs in the Middle West and the 

 Northwest. State extension specialists were cooperated with, as were 

 also the county agents and the regulatory forces of the State, in de- 

 veloping plans for the control of grasshoppers. 



The extension specialist in soils visited most of the States in the 

 }iorthern Mississippi Valley and the New England and Rocky Moun- 

 tain States in the development of a plan of cooperation Avith the State 

 specialists to increase the nitrogen and humus supj)ly through the 

 raising of more legumes in the crop rotation. He also made plans for 

 extending the saving of manures and the use of green crops and other 

 ci'op residues. He continued advocating the increasecl groAvth of 

 nitrogenous crops to lessen feed bills and to increase the supply and 

 im])rove the quality of manure. 



The specialist representing the Bureau of Markets gave particular 

 attention to the plans under Avhich the marketing organizations of the 

 States Avere Avorking and to the formation of marketing routes or 

 organizations. 



The Office of Farm Management continued its cooperation Avith this 

 office. The features emphasized in the Avork of tlie year Avere record 

 keeping, the interpreting of the record, cost accounting, increased 

 production per man, and labor distribution. 



