pended upon to solve the boll weevil problem in Louisiana, and 



there is nothing to indicate that the weevils will not survive the 



winters in Louisiana in as great numbers as they do in Texas. 



In spite of the loss of territory by the boll weevil, during the 



A R a A 



FIG. 3 Area in Louisiana infested by the boll weevil in July, 1905. 



past winter, they have made a marked gain to the eastward by 

 their migratory flight, which began during August and con- 

 tinued until the early part of November, decreasing- in vol- 

 ume and extent with the approach of colder weather. This 

 migratory flight regained for the insect all of the territory 

 which it had lost and a considerable area in addition. The dis- 

 tribution of the weevil in Louisiana, and the territory occupied 

 by it at the present time, is shown by Fig. 4. Although the net 

 gain in territory by the insect since December, 1904, has not 

 been nearly so great as was feared, nevertheless this gain in? 



-eludes about four-fifths of the Red River Valley of Louisiana, 



7 



