SB 

 818 

 C578 

 ENT 



Issued November 25, ]910. 



U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF ENTOMOLOGY— CIRCULAR No. 125. 



L. O. HOWARD. Entomologist and Chief of Bureau. 



INSECTS AVHICH KILL FOREST TREES: 



CHARACTER AND EXTENT OF THEIR DEPREDATIONS 

 AND METHODS OF CONTROL. 



A. D. HOPKINS, 



In Charge of Forest Insect Investigations. 



64136°— Oir. 125 — 10 



WASHINGTON : GOVERNMENT PRINTING OFFICE : 1910 



Z\SASZ 



