348 



of eggs produced throughout the 20 day test period. 



684. ,.and Taft, H. M. 1971. Effect on reproduction of the boll weevil 

 by drugs which act on catecholamines and indolealkylamines. Ann. 

 Entomol. Soc. Am. 64: 1390-1393. 



Anthonomus grand is Boheman were fed for 6 days on laboratory diets containing 

 drugs known to affect levels of catecholamines and indolealkylamines in verte- 

 brate nerve tissue; then they were fed diet without drugs for 6 more days. 

 The effect on reproduction was determined by recording the number of eggs per 

 female per day from the 3rd to the 12th day. Tlie reduction in oviposition 

 caused by alpha- methyltyrosine, alpha- methyl-m-tyrosine , 3-(£-chlorophenyl) 

 alanine, imipramine hydrochloride, guanethidine sulfate, and chlorpromazine 

 appeared to result from a reduction in feeding caused by a repellent effect. 

 However, chloromethamphetamine and phenoxybenzamine reduced oviposition 

 directly. 



685. , and Taft, H. M. 1972. Relationship between phospholipids and 

 triglycerides in the boll weevil and susceptibility to roxaphene + DDT. 

 J. Econ. Entomol. 65: 1733-1735. 



It was shown that field weevils are more susceptible to toxaphene : DDT than 

 lab weevils, but by the F^ generation on artificial diet they were comparable. 

 Weevils surviving typical treatment with toxaphene: DDT were shown to contain 

 more triglycerides but phospholipid comparable to the dead whether the weevils 

 were from the field or laboratory. 



686. , and Taft, H. M. 1975. Boll weevils: chemosterilization of both 

 sexes with busulfan plus Thompson-Hayward TH-6040. J. Econ. Entomol. 

 68: 96-98. 



Female Anthonomus grandis Boheman fed diets containing 0.1% busulfan are incom- 

 pletely sterilized. Fertility is significantly decreased whan insects fed 



