' i » .» .t^kmf'.M-^M uii ii 4iwi i jj« i i iw u i wyM_ <i" "iww i . i; .' ^ t^<w?-"f - ,^ i ^»J".V ' '» ' ."-JW i« . ' w.'» ''^ V' ' -wij. > ■- • — m ' t y\,MM. f yi.K > , ,[,< . ■i . i i»y i. ff^ ^ y ... .», ... im . jj » . j. , . » . i ,^ » H 



303 



with time) entails computing some parameter such as the effective life of the 

 test formulations. 



589. ; Johnson, W. L.; Edwards, R.; Kotter, E.; Kearny, J. F.; Davich, T. B.; 

 Lloyd, E. P.; and Ganyard, M. C. 1980. A polyester-wrapped cigarette 

 filter for dispensing grandlure. J. Econ. Entomol. 73: 250-251. 



A polyester-wrapped cigarette filter was found to be at least as effective in 

 field tests at several locations in dispensing grandlure as the ordinary 

 paper-wrapped filter placed inside a 1-dr glass vial. The new dispenser 

 saved considerable time in rebaiting traps in the Boll Weevil Eradication 

 Trr'.al in North Carolina during 1978 and 1979. 



590. ; McGovern, W. L.; Cross, W. H.; and Lindig, 0. H. 1976. Search for 

 a super laboratory strain of boll weevils: a rapid method for pheromone 

 analysis of frass- Environ. Entomol. 5: 81-82. 



Three laboratory strains of boll weevils, Anthonomus grandls Boheman, produced 

 more pheromone than the standard laboratory strain. Soxhlet extraction of the 

 frass provided a rapid method of analyzing for the pheromone. 



591. ; Mitchell, E. B.; Scott, W. P.; and Hedin, P. A. 1977. Boll weevils 

 are attracted to volatile oils from cotton plants. Environ. Entomol. 



6: 804-806. 

 The volatile oil obtained by distilling cotton plants was attractive both 

 to emerging overvintered boll weevils, Anthonomus grandis Boheman, and to 

 late-season migrating weevils in the field. The evidence indicates that 

 the volatiles from cotton plants influence the migratory behavior of boll 

 weevils and also are sufficiently attractive to guide overwintered boll 

 weevils to fields of seedling cotton. 



