366 



717. Oliver, J. E.: Brown, R. T.; Stokes, J. B.; and McHaffey, D. G. 1973. 

 Chemoster Hants against the boll weevil. 4. Miscellaneous compounds. 

 J. Econ. Entomol. 66: 796-798. 



Recent repo/*ts from this laboratory described the sterilant activity of 3 

 classes of compounds, aziridines (Borkovec et al. 1972), s-triazines (DeMilo 

 et al. 1972), and phosphoraraides (Terry et al. 1972), against the boll weevil, 

 Anthonomus grandis Boheman. We report here 40 additional active compounds 

 including several amines and amine salts (1-13), dithiobiurets, dithiazolium 

 salts, and related compounds (14-26), and miscellaneous heterocyclic compounds 

 (27-39). 



718. ; DeMilo, A. B. ; Brown, R. T.; and McHaffey, D. G. 1977. AI3-63223: 



a highly effective boll weevil sterilant. J. Econ. Entomol. 70: 286-288. 

 Female Anthonomus grandis Boheman are effectively sterilized for as long as 8 

 wk when dipped in acetone solutions of AI3-63223 [l-(2,6-difluorobenzoyl)-3-[4- 

 trifluoromethyl) phenyl] urea ] . This compound is superior to diflubenzuron 

 from which recovery of fertility occurs after 2-3 weeks. Considerable reduc- 

 tion of reproduction also occurs with male boll weevils similarly treated 

 with AI3-63223. 



719. Ourth, D. L., and Smalley, D. L. 1980. Phagocytic and humoral immunity 

 of the adult cotton boll weevil, Anthonomus grandis , Coleoptera: 

 Curculionidae, to Serratia-marcescens . J. Invertebr. Pathol. 36: 104-112. 



This 1 'P.stigation determined phagocytic, lysozymal and bactericidal defen- 

 sive responses of adult laboratory-reared cotton boll weevils, A. grandis . 

 Phagocytosis was 1st demonstrated in boll weevils at 3 h following injection 

 of l^ve S_. marcescens . Maximum phagocytosis occurred in 16.4% of plasmatocytes 



