﻿8 BULLETIN 1397, U. S. DEPARTMENT OF AGEICULTUEE 



studying the life history and habits of the pink boUworm. The 

 following statements regarding the life history and habits of the 



Fig. 6. — Cotton locks showing typical injury by the pink bollworm (Fectinophora 



nn.<iSiiinip.l,la\ 



gossypiella) 



pest are based upon Busck's paper (=?), and subsequent observations 

 by a number of entomologists in Mexico, 



The eggs of the pink bollworm are laid singly or in groups on 

 all parts of the plant above ground, about 50 per cent of them being 

 laid on the green bolls. In Mexico the favored position is at the 



Fig. _7. — Cotton seed containing pink bollworms. opened to show the cells. Both the 

 single and double seeded cells are shown, the double seeded ones being broken apart 



base of the boll, between the boll wall and calyx. Often more than 

 50 eggs and shells have been found on a single boll. It is estimated 



