DISEASES 



OF 



ECONOMIC PLA]S]"TS 



BY 



"F. L. STEVENS, Ph.D. 



PROFESSOR OF BOTANY AND VEGETABLE PATHOLOGY OF THE 

 NORTH CAROLINA COLLEGE 6f AGRICULTURE AND 

 MECHANIC ARTS, AND BIOLOGIST OF THE 

 AGRICULTURAL EXPERIMENT STATION 



AND 



J. G. HALL, M.A. 



ASSISTANT IN VEGETABLE PATHOLOGY IN THE NORTH 

 CAROLINA AGRICULTURAL EXPERIMENT STATION 



Neto gOTfe 



THE MACMILLAN COMPANY 

 1910 



All rights reserved 



