_-— - - ■' ^ 



wffmmffmmF^mfm 



114 



212. DeMilo, A. B.; Borkovec, A. B.; and McHaffey, D. G. 1972. Chemopterilants 

 against the boll weevil. 2. s-Triazines. J. Econ. Entomol. 65: 1548-1550. 

 Of 122 derivatives of ^-trtazine tested as chemosterilants against Anthonoinus 

 grandis Boheman, 44 were active as oviposition inhibitors. Occasional reduc- 

 tion in egg hatch-ability or in emergence of the F, generation was a less re- 

 liable indicator of sterilizing activity than reduction in oviposition, even 

 when treated males were crossed with untreated females. The relationship be- 

 tween structure and activity in the £-triazines revealed considerable diffe- 

 rences between susceptibility of A. grandis and the house fly, Musca domestlca 

 L. , to this class of chemosterilants. Because of the relatively low and im- 

 permanent activity of these compounds in A. grandis , the s-triazines do not 

 appear to have a practical potential for controlling this insect. 



213. Do •;. Oliver, J..E.; Fye, R. L.; and Haynes, J. W. 1977. Styrylsulfonamides 

 as chemosterilants against house flies and boll weevils. U.S. Agric. 

 Res. Serv. [Rep.] ARS-NE-84, 7 pp. 

 Eleven styrylsulfonamides were effective sterilants against boll weevils and 

 house flies when the compounds were added to the diet of adult insects. In 

 boll weevils, 10 compounds markedly inhibited oviposition in females but high 

 toxicity prevailed at most concentration. Five sulfonamides tested in house 

 flies by feeding were effective sterilants. The most effective compounds for 

 flies were (JE)-N-(2,4-dinitro-l-naphthalenyl)-2-phenylethenesulfonamide 

 (AI3-62771) and (E)-N-(2,4-dinitro-l-napthalenyl)-2-(2-thienyl)ethenesulfon=- 

 amide (AI3-62959) . Structure-activity relationships were inconclusive for 

 this group of compounds. 



214. ; Terry, P. H.; and Rains, D. M. 1978. Simple derivatization proce- 

 dure for gas-liquid chromatographic analysis of diflubenzuron in pond 

 water and for analysis of its trifluoromethyl analog penfluron in boll 



