mmA 



128 



because of the boron. When fed diet containing 0.1% boric acid and irradiated 

 with 1.53 X 10-^-1.50 X 10^3 N^j^, adult weevils had 10- and 2-fold greater 

 mortality and sterility, respectively, than weevils fed regular diet and irra- 

 diated with the same fluences. Irradiation of males when fed boric acid caused 

 greater sterility than in similarly treated females, although fecundity was re- 

 duced also in irradiated females. Males that survived 2-3 weeks recovered fer- 

 tility. At least 0.01% boric acid was required in the adult diet to obtain in- 

 creased mortality and sterility at 8.1A X 10 Nj^, compared with Irradiated males 

 which were fed regular diet. Increased mortality was obtained when 1-A days 

 elapsed between feeding and irradiation, whereas increased sterility was 

 obtained when no more than 2 days elapsed between feeding and irradiation. 

 When fed 0.1% boric acid and irradiated with 25 krad cobalt-60 gamma rays, 

 adult weevils had no increased sterility or mortality from the boric acid. 



237. Flitters, N. E. 1968. Insect body temperatures determined with mlcro- 

 themoelectric thermometer. Ann. Entomol. Soc. Am. 61: 36-38. 



The body temperatures of larvae of bollworms, Heliothis zea (Boddie) , and 

 adults of house flies, Musca domestica L.; boll weevils, Anthonomus grandi s 

 Boheman; American cockroaches, Periplaneta amerlcana (L.); and brown soft 

 scale. Coccus hesperidum L., were determined with microtherraocouples and _ 

 'continuously recorded on a 24-polnt potentiometer. Peak body temperature 

 for scales was 121°?, for cockroaches 124"?, bollworm larvae 118°?, for house 

 flies 112°?, and for boll weevils 106"?. Ambient air of the microenviron- 

 mental at 5 ft above ground was checked for comparison. 



238. Frlsble, R. E. 1976. Role of pheromone traps in survey, detection, 

 program evaluation, and related biological studies. In^ Detection and 

 Management of the Boll Weevil With Pheromone. Tex. Agric. Exp. Stn. 

 Res. Monogr. 8, pp. 32-36. 



