SB 

 818 

 C578 

 ENT 



lo. 122. 



Issued December 30, 1910. 



nited States Department of Agriculture, 



BUREAU OF ENTOMOLOGY. 

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



THE STATUS OF THE COTTON BOLL WEEVIL IN 1909. '^ 



By W. D. Hunter, 



In Charge Southern Field Crop Insect Investigations. 

 AREA INFESTED. 



All the regions in which the cotton boll weevil was known to occur in 

 1909 are shown on the accompanying map (fig. 1). It will be noticed 



Fig. 1.— Map showing the regions in which the cotton boll weevil occurred in 1909. 



that outside of the United States the insect occurs only in Mexico, 

 Central America, and Cuba. The infested area in Texas covers all 



o The statements in this circular regarding the territory infested by the boll weevil 

 cover the advance made by the insect up to the close of the year 1909. Since that 

 time it has extended its range in the United States considerably, as will be shown in 

 a map soon to be issued by the Bureau of Entomology. 

 68624°— Cir. 122—10 



Z IS'^'^Z 



