Bui. 51, Bureau of Entomology, U. S. Dept of Agriculture. 



Plate XIX. 



Conditions Favorable and Unfavorable to Weevil Spread and Activity. 



Figs. 79, 80, Small bolls taken from cotton seed in uninfested territory which later produced 

 weevils; fig. 81, comparison of pilosity on stems of King and Mit Afifi cotton: fig. 82, section 

 of boll injured by weevil feeding, showing puncture and dried gelatin formation— all nat- 

 ural size (original). 



