? I 



MAY, 1913 



tl3JL-fVM JCUIcl 



BULLETIN 333 



CORNELL UNIVERSITY 



AGRICULTURAL EXPERIMENT STATION OF 



THE COLLEGE OF AGRICULTURE 



Department of Entomology 



CONTROL OF TWO ELM-TREE PESTS 



BY GLENN W. HERRICK 



ITHACA, N. Y. 

 PUBLISHED BY THE UNIVERSITY 



