258 



could put into practice in five to ten years has the largest potential. How- 

 ever, the likely costs to acquire these benefits need to be considered carefully. 

 A boll-weevil-control alternative that presently exists and could be put into 

 practice within one year would provide social benefits $331 million larger than 

 an eradication program. Considering the uncertainty associated with per-acre 

 yield and cost effects of alternative boll-weevil-control strategies, there is 

 justification for developing an improved data set. Through careful management 

 and data collection in the optimum pest-management trial in Mississippi and the 

 eradication trial in North Carolina, more refined estimates of cost and yield 

 effects may become available and the evaluation may be updated. This analysis 

 suggests that, in the interim, there are opportunities for developing vastly im- 

 proved boll-weevil-control strategies with available technology. Substantial 

 social benefits would evolve that justify a strong continued effort to develop 

 Improved cotton production systems in which boll weevil control is but one aspect, 



491. Lambert, L. ; Jenkins, J. N.; Parrott, W. L.; and McCarty, J. C. 1980. 



Evaluation of foreign and domestic cotton cultivars and strains for 



boll weevil resistance. Crop Sci. 20: 804-806. 

 Forty-four domestic and introduced cotton ( Gossypium hirsutum L.) cultivars and 

 strains were evaluated in the laboratory for resistance to the boll weevil, 

 Anthonomus grandis Bohe. Oviposition by the boll weevil was significantly 

 lower in squares (flower buds) from eight cottons ('Lasani 11, ' 'AC 134,' 

 'Albar 627,' G077-2, 'BP 52/NC 63,' TX-LY-18-72, DES-HERB 16, and DES-ARS 16) 

 than in squares from the commercial cultivar, 'Deltapine 16'. Five of the 

 eight were introductio.is. Oviposition was not significantly lower in any 

 entry than in 'Stoneville 213', another commercial cultivar. There was no 

 significant correlation between terpenoid aldehyde content in squares of 10 

 entries and rate of oviposition. The potential of the entries in breeding for 

 increased resistance to the boll weevil is discussed. 



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