THE INSECT PEST SURVEY 
BULLETIN 
Volume 18 
Supplement to No. 9 
December 29, 1938 
BUREAU OF 
ENTOMOLOGY A „N D PLANT QUARANTINE 
UNITED STATES 
DEPARTMENT OF AGRICULTURE 
AND 
! 
THE STATE ENTOMOLOGICAL 
AGENCIES COOPERATING 
LIBRARY 
state plant boarp 
