®l)c €ommonroealtl) of iHassacliusctts. 



STATE BOAED OF AGRICULTURE. 



CIRCULAR No. 74 



June, 1917. 



Common Potato Diseases and 

 THEIR Control. 



A. Vincent Osmun. 



From the Sixtt-fifth Annual Report of the Massachusetts State Board of 



Agriculture. 



BOSTON: 



WRIGHT & POTTER PRINTING CO., STATE PRINTERS, 



32 DERNE STREET. 



1917. 



