BIBUOGEAPHY OF COTTON BOLL, WEEVIL. 29 



No. 302. Townsend, C. H. T., 1898.— El picudo.<El Progreso de Mexico, ano 6, 

 pp. 82-84, November 15, and pp. 97-99, November 22. 



Remarks at meeting in Cuero, Tex., on Oct. 11, 1898. The history and habits of the 

 weevil and following methods of control are given: Use of sweetened arsenicals, destruc- 

 tion and poisoning of sprout cotton, employment of machines for collecting weevils, pick» 

 Ing up squares, destroying plants as early as possible in the fall, and preparing the fields 

 in the winter for the next crop. 



No. 303. Travis, P. C, 1904.— Effect of the boll weeAdl.<Farm & Ranch, Cotton Sup- 

 plement, vol. 23, No. 22, p. 23, May 28. 

 Comparative production of cotton in infested and uninfested counties in Texas. 



No. 304. Treherne, R. C, 1908.— (See No. 233.) 



No. 305. d'Utra, G., 1901. — Cultura do algodoeiro. Contra o "furao" ou caruncho daa 

 macas e carocos do algodao.<Boletin da Agr., Secy. Agr., Com. e Obraa. 

 PublaB do estado de Sao Paulo (Brazil), 2nd Ser. No. 4, pp. 211-229. 



A discussion of the importance of the boll weevil and remarks on various remedies, based 

 largely on Prof Townsend's early work (see No. 301). 



No. 306. Valle, Alfredo del, 1904. — Enemigos vcgetales y animales del algodonero. 

 <E1 Progreso de Mexico, ano 11, pp. 503-504, August 30, pp. 515-516, 

 September 8. 



The stages of the weevil are described and life history and habits outlined. Natural 

 enemies are mentioned and the distribution of the weevil in Mexico is given. Various 

 remedies suggested by investigators are presented. 



No. 307. Webber, H. J., 1903. — Improvement of cotton by seed selection. <Ybk. 

 U. S. Dept. Agr. for 1902, pp. 384-385. 



Remarks on the relative extent of injury by the boll weevil to several varieties of Egyp- 

 tian cotton. 



No. 308. Webber, H. J., 1903.— Breeding cotton resistant to boll weevil. <Proc. 

 2nd Ann. Sess. Tex. Cotton Conv., pp. 27-31. 



Advice regarding the improveniont of cotton seed and suggestion that varieties which 

 are somewhat resistant to the boll weevil may be bred. 



No. 309. Webster, F. M., 1903.— Mexican cotton boll weevil. <Prairie Farmer, vol. 

 75, No. 46, pp. 6, 11, 7 figs., November 12. 



History of invasion, habits, damage; opportunity for extermination on first appearance 

 in Texas lost. Work of the U. S. Department of Agriculture. 



No. 310. Weiss, Sim, and Russ, S. E., jr., 1904. — Report on probable effect of boll 

 weevil in Louisiana and Mississippi. <Proc. 2nd Ann. Meet. La. Boll 

 Weevil Conv., Shreveport, La. Cir. 2, La. Crop Pest Comm., pp. 51-56. 

 Report on an investigation of conditions existing in the boll weevil infested territory of 

 Texas. Practices recommended by the Department of Agriculture, and known as the 

 "cultural system." 



■No. 311. Wentworth, W. H., 1906.— Boll weevil facts. <Texas Stockman & Farmer, 

 vol. 25, No. 32, p. 7, July 11. 



The fallacy of the opinion that the boll «reevil is leaving certain sections is pointed out 

 and the scarcity of weevils accounted for by weather conditions and the presence of the 

 cotton-leaf worm the previous fall. (Taken from San Antonio Express.) 



No. 312. Wheeler, W. M., 1904. — On the pupation of ants and the feasibility of estab- 

 lishing the Guatemalan kelep or cotton weevil ant in the United States. 

 Science, n. s., vol. 20, pp. 437-440, September 30. 



Discussion of some of the habits of the kelep and reasons why the author believes that 

 this species can not be established in the United States successfully. 



No. 313. Wheeler, W. M., 1904. — Some further comments on the Guatemalan boll 

 weevil ant.<Science, n. s., vol. 20, pp. 766-7G8, December 2. 



A further discussion of the improbability of successfully establishing the kelep in the 

 United States. 



