Bui. 50, Bureau of Entomology, U. S. Dept. of Agriculture. 



Plate IV. 



Fig. 1.— Field of Young Corn at Paris, Tex., at About the Age in the Spring 

 WHEN IT Becomes Attractive to Moths for Oviposition (Original). 



Fig. 2. 



-A Number of Bollworm Eggs on a Piece of Black Paper, Enlarged 

 About Seven Times (Original). 



