MANUAL 
OF 
FRUIT DISEASES 
BY 
LEX R. HESLER, A.B., Pu.D. 
ASSISTANT PROFESSOR OF PLANT PATHOLOGY 
NEW YORK STATE COLLEGE OF AGRICULTURE 
AT CORNELL UNIVERSITY 
AND 
HERBERT HICE WHETZEL, A:B., M.A. 
PROFESSOR OF PLANT PATHOLOGY 
NEW YORK STATE COLLEGE OF AGRICULTURE 
AT CORNELL UNIVERSITY 
ITHACA, NEW YORK 
Neto Work 
THE MACMILLAN COMPANY 
1917 
All rights reserved 
