144 



and bollworm, Heliothis spp., during September and October. These considera- 

 tions, however, should not obscure the important point that can be made from 

 the rest Its of this experiment. That is, heavy infestations of square-feed- 

 ing insects during the early part of the season (prior to the third week of 

 squaring) should not necessarily be of great immediate concern. 



271. . 1972. A large scale boll weevil r-uppression experiment. Folia 

 Entomol. Mex. 23-24: 19. (In Spanish). 



A large scale boll weevil suppression experiment was conducted in 1969-1970 

 on 12,000 acres of cotton in Mabama. Diapause control, grandlure-baited 

 wing traps, sterile insect releases, and a resistant variety of cotton were 

 the control methods employed. Results will be discussed. 



272. . 1974. Traps and trap crops for boll weevil suppression. Proc. 

 1974 Beltwiae Cotton Prod. Res. Conf., pp. 128-130. 



In general, this experiment confirmed results obtained in a similar experi- 

 ment conducted in 1972. That is, trap crops offer considerable potential 

 as a boll weevil suppression technique. However, the primary problem of 

 implementation of the trap crop technique is the difficulty of planting 

 trap crops at least two weeks before the regularly-planted portion of the 

 field. Most producers are reluctant to delay their planting operation in 

 this mannet. However, the data indicate that the trap crops should be 

 planted early if optimum results are to be achieved. Hopefully, additional 

 research will produce methods of negating this difficulty. 



273. , and Davich, T. B. 1966. Effects on egg hatch of alternate matings 

 of female boll weevils with apho late-treated and untreated males. J. 

 Econ. Entomol. 59: 1209-1211. 



Virgin female boll weevils, Antlionomus grand is Boheman, were mated alternately 

 in various sequences to untreated males and to males sterilized with apholate. 



