®t)c Commontoealtl) of iHassacliusetts 



STATE DEPARTMENT OF AGRICULTURE 



WILFRID WHEELER, Commissioner 



DEPARTMENT CIRCULAR No. 9 



April, 1919 



CONTROL OF THE PRINCIPAL INSECTS 



INJURIOUS TO THE APPLE 



ABOVE GROUND 



THOMAS J. HEADLEE 



BOSTON 



WRIGHT & POTTER PRINTING CO., STATE PRINTERS 



32 DERNE STREET 



1919 



