298 



sulfide (A13-24916, thiotepa) and P,P-bis (l-aziridinyl)-N-methylphosphino- 

 thioic amide (A13-61585) . The vacuum-dip technique could easily be scaled- 

 up for a mass treatment program. 



576. ; Flint, H. M. ; Haynes, J. W. ; Klassen, W. ; Mitlin, N. and Davich, 

 T. B. 1972. Sterility induced in boll weevils by alkylating agents 



I administered in an adult diet. J. Econ. Entomol. 65: 13-19. 



i The chemosterilant activity of 4 alkylating agents to adult Anthonomus 

 grandis Boheman was investigated. A diet containing 0.1% busulfan (1,4- 

 butanediol dimethanesulfonate or ENT 25012) and fed for 6 days produced 

 sterility in both sexes in 5 out of 7 tests. Busulfan 0.2% for 6 days 

 and 0.4% for 4 days generally were effective against both sexes, but mor- 

 tality was high in the male. Although ENT 61168 (diethylene glycol dime- 

 thanesulfonate) was ineffective against the male, this compound generally 

 sterilized the females at either 0.4% for 4 and 6 days ro 0.8% for 4 days. 

 ENT 51904 (1,3-propanediol dimethanesulfonate) was ineffective againjt the 

 male, but all regimes produced sterility in the female. Apholate produced 

 sterility in both sexes only when accompanied by excessive mortality. 



577. McKibben, G. H. 1972. A device for injecting grandlure into cigarette 

 filters. J. Econ. Entomol.. 65: 1509-1510. 



In the past 2 years, large numbers of grandlure pellets were prepared at 

 the Boll Weevil Research Laboratory, State College, Miss., for traps used 

 in surveying and studying the boll weevil, Anthonomus grandis Boheman. 

 Originally, pellets were prepared by manually pipetting 0.5 ml of grandlure 

 solution onto cigarette filters. The procedure was slow, only ca. 500/hr 

 could be compeleted, and considerable variation existed among doses dispensed 

 by technicians. Moody et al. (1972) constructed a device in vjhich a solenoid- 

 driven syringe was used to dispense the solution: filters were put into stems 



