??«)-y. 



32 



57. Bird, L. S.; Benedict, J. H, ; Bourland, F. M.; Reyes, L.; Bush, D. L.; 

 and Percy, R. G. 1977. Breeding glandless cottons for disease and insect 

 resistance. Iii Glandless Cotton. Its Significance, Status, and Prospects. 

 Proceedings of a Conference, December 13-14, 1977, Dallas, Texas, pp. 

 12A-140. U.S. Agrlcoltural Research Service, New Orleans. 



Developing cottons having disease and insect resistance has been a serious 

 challenge for many scientists working with cotton. Meeting the challenge in 

 glandless cottons will give double dividends tor a crop that provides fiber 

 and food with no limitations on use. Current trends concerning energy, the 

 use of pesticides, pollution standards and world food protein needs inject a 

 sense of urgency for researching glandleijsness in cotton. Disease and inject 

 resistant glandless cottons will pemit more economical production of the basic 

 raw materials cellulose, food protein, oil and roughage in management systems 

 which are efficient in using energy and natural resources. Hindsight must be 

 used in planning for the future. Considerable infonnation is available for 

 genetic improvement for disease resistance and the pool of knowledge for 

 insect resistance is accumulating daily. The good and bad experiences from 

 many years of disease resistance research can be used to make improvement for 

 insect resistance more effective. We.j^ill give an analysis of the past and 

 pre sent as a basis for emphasizing a plan for developing disease and insect 

 resistant glandless cottons. 



58. Bird, T. G., and Bancroft, H. R. 1976. The effects of Ciba-Geigy synthetic 

 juvenile hormone on fecundity and total sterol, levels in the cotton boll 

 weevil, Anthonorous grandis Boheman. J. Tenn, Acad. Sci. 51: 60. 



Ciba-Geigy 13353, a compound with juvenile hormone properties was topically 

 applied at 50 and 75 microgram levels per insect to the cotton boll weevil. 

 Observations on egg production were taken at 4 adult ages. Sterol level were 



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