Insect Pests of Interest to Cotton Grower? 



175 



plant than cotton and never lays eggs except in the cotton square 

 or boll. The cell in which the pupal stage is passed in the boll, 

 after going thru a gin, resembles a seed in form and size. The weevil 

 is rarely found inside the seed hull, but nevertheless is frequently 

 found with cotton seed, since squares, small bolls and pupal cells 

 containing the adult insects usually go thru the gin without being 



Fig. 2— Cotton square with bracts spread to show boll weevil puncture. 



crushed. Cotton seed and seed cotton from boll weevil infested 

 sections are therefore very likely to carry the boll weevil even tho 

 the seed itself is not, strictly speaking, infested. 



THE cotton BOLLWORM 



The cotton bollworm (Chloridea ohsoleta Hubn.) is an entirely dif- 

 ferent insect from the boll weevil, but the two are frequently con- 

 fused. The adult of the bollworm is a large moth which lays its 

 eggs in large numbers on various parts of the cotton plant. The 



