U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF ENTOMOLOGY-BULLETIN No. 100. 



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



THE INSECT ENEMIES OF THE 

 COTTON BOLL WEEVIL. 



W. DWIGHT PIERCE, 



Agent and Expert, 



ASSISTED BY 



R. A. CUSIBIAN AND C. E. HOOD, 



Agents and Experts, 



UNDER THE DIRECTION OF 



W. D. HUNTER, . 



Agent and Expert, 

 In Charge of Southern Field Crop Insect Investigations. 



Issued April 3, 1912. 



WASHINGTON: 



GOVERNMENT PRINllNG OFriOE. 



1912. 



