REPORT OF THE CHIEF OF THE BUREAU OF PLANT 



INDUSTRY. 



United States Department of Agriculture, 



Bureau of Plant Industry, 

 Washington, D. C ., Octoher 12, 1922. 

 Sir : I have the honor to submit herewith a report of the work of 

 the Bureau of Plant Industry for the fiscal year ended June 30, 1922. 

 Respectfully, 



Wm. a. Taylor, 



Chief of Bureau. 

 Hon. Henry C. Wallace, 



Secretary of Agriculture. 



WORK AND ORGANIZATION OF THE BUREAU. 



The Bureau of Plant Industry deals with all problems of plant 

 production. These activities include the improvement of useful 

 plants by selection and breeding, the investigation of destructive 

 plant diseases and development of methods for their control, the 

 introduction of new plants from foreign countries, the improvement 

 in cultural methods for producing crops, and the development of 

 improved methods of crop handling and utilization. 



The bureau maintains field stations and conducts experimental 

 work in all sections of the United States, including the irrigated 

 lands on Government reclamation projects, and in cooperation with 

 State agricultural experiment stations determines the occurrence and 

 severity of plant-disease epidemics. A seed and plant exchange serv- 

 ice is conducted between experts of foreign countries and American 

 experts. The bureau supervises the purchase and mailincf for the 

 congressional distribution of vegetable, flower, cotton, tobacco, and 

 lawn-grass seeds and of bulbs. 



The scientific work of the bureau during the year has been carried 

 on with the following organization : 



Laboratory of plant pathology Erwin F. Smith, pathologist in charge. 



Pathological collections Flora W. Pattei'son, mycologist in 



charge. 

 Plant-disease survey George R. Lyman, pathologist in 



charge. 



Fruit-disease investigations M. B. SVaite. pathologist in charge. 



Citrus-canker eradication Directed by K. F. Kellerman, associate 



chief of bureau. 

 Investigations in forest pathology Haven Metcalf, pathologist in charge. 



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