■- |-T^T-^--1 -**'* -i*--*^r^--**-*y:>-rfl*.-. 



335 



acre plus nine treatments with azinphosmethyl applied at 3-, to 6-day intervals 

 during a 5-veek period beginning July 29 did not eliminate an isolated boll 

 weevil population of reproducing weevils, 



651. ; McGovern, W. L.; and Huddleston, P. M. 1979. Influence of field 

 applications of dif lubenzuron on longevity, fertility, and attractive- 

 ness of released irradiated boll weevils. J. Ga. Entomol. Soc. 14: 

 251-25A. 



The attractiveness and longevity of released males of Anthonomus grandis 

 grandis Boheaian, irradiated as pupae, were not affected by the exposure of 

 foliar applications of dif lubenzuron. However, egg hatch from normal virgin 

 females paired with these males was greatly reduced. 



652. ; McGovern, W. L.; and Wilson, N. M. 1977. Boll weevils: sterility 



32 

 induced by P tagging. J. Econ. Entomol. 70: 393-394. 



32 

 Beta particles arising from P in paint placed on the wing cover of females 



of Anthonomus grandis Boheman reduced longevity, egg production, and egg 



hatch. Egg hatch also was reduced in eggs collected from females mated with 



32 32 



P-tagged males. Although P at the dosage used may be satisfactory for 



tagging boll weevils for movement studies, it is not satisfactory as a label 



for weevils that are expected to reproduce normally. 



653. ; Merkl, M. E.; Wright, J. E.; Davich, T. B.; and Heiser, R. F. 1980. 

 Sterility of boll weevils in the field following treatment with diflu- 

 benzuron and gamma irradiation. J. Econ. Entomol. 73: 824-826. 



Over 600,000 mixed sex sterile Anthonomus grandis grandis Boheman that had been 

 sterilized by feeding them diflubenzuron treated diet for 6 days and then irra- 

 diating them were released in 2.4 ha of cotton in south Florida. Results showed 

 that >a bell weevil population was not established in the field which Indicated 

 that all of the insects were sterilized. 



