cotton was harvested by September 18. Apparently the loss of about 50% of the 

 squares during the first 30-day period of fruiting did not affect the yield at Col- 

 lege Station where adequate protection was given the fruit from the ravages of 

 both the weevil and bollworm later in the season. At Terrell, a large percentage 

 of the additional fruit set by protecting the squares from weevils shed, thus re- 

 ducing the final yields on these plots to a small increase over the check. Ap- 

 parently the seasonal average loss of about 60% of the squares did not greatly 

 reduce the yield of cotton planted on this soil. Forty percent of uninjured squares 

 produced by the plant were sufficient to yield about all the soil was capable of 

 producing. These results indicate that it may be more profitable to dust cotton 

 during the last 3 weeks of July and August, at which time the weevils and boll- 

 worms are most injurious in these areas, than to try to protect the fruit during 

 the entire season. 



1957 - Leigh, T. F., and Charles Lincoln. Controlling boll weevils in hill land areas. 

 Ark. Agr. Expt. Sta., Ark. Farm Res., p. 10. Spring. 



The benefits of insecticide treatments, early fruiting cotton varieties, and 

 proper date of planting. 



1959 - Davich, T„ B. New approaches to cotton insects. Farm Chemicals 1Z2: 62, 64, 65. 

 June. 



Reviews the use of "new" approaches to boll weevil control: (a) use of sys- 

 temics, (b) host plant resistance, (c) chemically induced plant resistance, 

 (d) gamma irradiation, (e) hormones and antimetabolites, and utilization of 

 "diapause" phenomenon. 



BIOLOGY AND LIFE HISTORY 



1895 - Townsend, C. H. T. Report on the Mexican cotton boll weevil in Texas ( Anthon- 

 omus grandis Boh.). Insect Life 7(4):295-309. Mar. 



An important preliminary paper giving valuable data on life history and 

 habits, an account of its spread from Mexico to Texas, and its extent in Texas at 

 that time. In the consideration of remedies are suggested the cutting and burning 

 over of the cotton fields in winter, the abandonment of cotton growing over the 

 region then infested, and the maintenance of a wide zone free from cotton along 

 the lower Rio Grande bordering Mexico, with other suggestions of less practical 

 value. 



1898 - Balestrier, L. de. El picudo en 1897. El Progreso de Mexico 5:242-243. Jan. 30. 

 Brief statement regarding the boll weevil in Tabasco, its parasites, and 

 methods of control. Two machines are briefly discussed. 



1901 - Mally, F. W. A preliminary report of the progress of an investigation concerning 

 the life history, habits, injuries, and methods for destroying the Mexican cotton 

 boll weevil ( Anthonomus grandis ). Authorized by a Special Act of the 26th Legis- 

 lature of Texas, p. 1-33, Suppl., p. 35-45, State Printer, Austin. 



The life history and habits of the weevil are discussed, and insects mistaken 

 for the boll weevil are mentioned. 



1901 - Mally, F. W. The Mexican boll weevil. U. S. D. A. Farmers' B. 130, 29 p. 

 Provides notes on life history and habits of the boll weevil. 



1901 - Rangel, A. F. Estudios preliminaries acerca del picudo del algodon ( Insan- 

 thonomus grandis , I, C. Cu.). Comn. de Parasit. Agr. B. 1(3):93-104. 

 1901. Mex. 



Contains remarks on previous work, importance of the insect, origin and 

 transportation, biology, character of injury, and action of climate on image. 

 Burial of weevils is indicated as futile. Remedies mentioned include: proper 

 soil preparation, destruction of stalks, inundation, selection of seed, destruction 

 of fallen squares, insecticides, and traps. 



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