Insect Pests of Interest to Cotton Growers 179 



Fig. 7 — Cotton bolls showing difference between injury by common bollworm 

 and pinic bollworm. At left injury by common bollworm (Chloridca obsoleta) — note 

 the large orifice and raised edges; at right injury by pink bollworm— note the com- 

 paratively small clean cut orifices in carpel^ (Hunter, from Quar. Bull. State Plant 

 Bd. of Fla.) 



Pig 8 —Cotton seeds infested by pink bollworm. Above "double" or "twm" 

 seeds characteristic of the work of larva of this insect in its last stage. (Hunter, 

 from Quar. Bull. State Plant Bd. of Pla.) 



