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Studies were made of sterility, mortality, microbial contamination, and mating 

 behavior of Anthonomus grandis Boheman after different kinds of treatments. 

 Diflubenziiron and antibiotics were administered in the adult diet, and the 

 weevils were further treated by irradiation (10 Krad in a nitrogen atmosphere) 

 or by fumigation with bisazir ( P,P , bis (l-aziridinyl)-N-methylphosphinothioic 

 amide). Vihen adults were fed diflubenzuron for 5 days after emergence, followed 

 by irradiation or fumigation on the 6th day, a high level of sterility (99%) 

 was induced. Diflubenzuron treatment apparently reduced sperm transfer and 

 increased mortality, and antibiotics reduced pheromone production. 



991. . ; Moore, R. ; McCoy, J.; Wiygul, G.; and Haynes, J. 1980. Comparison 

 of 3 sterilization procedures on the quality of the male boll weevil, 

 Anthonomus grandis grandis . J. Econ. Entomol. 73: 493-496. 

 Irradiation (10 krads in a N atmosphere) plus dipping in 0.1% diflubenzuron in 

 acetone of 6 day old A. grandis grandis Boheman was selected over fumigation plus 

 dipping of adults and fractionated irradiation of pupae as the method of choice 

 for sterilization for production of quality weevils. The results for this 

 method were: sterility 98.5% and mortality 34.5% at 7 days post-treatment; mating 

 with sperm transfer 78.5% and 59.6% of normal at 3 and 7 days post-treatment, 

 respectively; and pheromone production of 0.4 mu.g/adult per day. Fumigation 

 plus penfluron produced comparable sterile males, but irradiation was more con- 

 venient and safer. 



992. Yamamoto, I.; Ohsawa, K. ; and Plapp, F. W. , Jr. 1977. Effect of the 

 inclusion compounds of pyrethroids and methyl parathion on certain 

 cotton Insects. J. Pesti. Sci. 2: 41-49. 



Methyl parathion is included in beta-cyclodextrin in 1:2 or 1:1 molar ratio. 



These aad the inclusion compounds of four pyrethroids including bioallethrin. 



