Issued February 20, 1912. 



U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF PLANT INDUSTRY— Circular No. 91. 



B. T. GALLOWAY, Chief of Bureau. 



THE NEMATODE GALLWORM ON POTATOES AND 

 OTHER CROP PLANTS IN NEVADA. 



Lii: 



BY 



»>-> 1 /.NIC • 

 C. S. SCOFIELD, OAKOEW. 



Agriculturist, Western Agricultural Extension. 



WASHINGTON : GOVERNMENT PRINTING OFFICE : 1912 



