16 BIBUOGRAPHY OF COTTON BOLL WEEVIL. 



No. 161. Hunter, W. D., 1906. — Statement concerning the present status of the cotton 

 boll weevil in Texas. <Nos. 13 and 21, Supplement, Texas Section, 

 Climate and Crop Service, Weather Bureau, U. S. Dept. Agr., 1 p. each, 

 July 3 and August 28. 



Eesults of a large series of field examinations to determine the abundance of the weevil 

 in different sections. 



No. 162. Hunter, W. D., 1906. — Area infested by the cotton boll weevil, October 10, 

 1906.<Farm and Ranch, vol. 25, p. 16, 1 map, November 24. 



A statement of the distribution of the boll weevil in the United States, with remarks on 

 the ability of the pest to adapt itself to various climatic and other conditions. 



No. 163. Hunter, W. D., 1907.— The boll weevil.<Texas Stockman & Farmer, vol. 

 26, No. 17, pp. 1-2, April 3. 



A circular letter dated March 27, 1907, setting forth the weevil conditions prevailing at 

 that time. 



No. 164. Hunter, W. D., 1907.— Boll weevil prospects for 1907.<Farm & Ranch, 

 vol. 26, p. 7, April 13. 



Statement that the winter of 190G-07 was unusually favorable for successful hibernation 

 of the weevil. The necessity for applying the cultural methods is emphasized. 



No. 165. Hunter, W. D., 1907. — Some recent studies of the Mexican cotton boll 

 weevil. <Ybk. U. S. Dept. Agr. for 1906, pp. 313-324, 1 pi., 1 map. 



The following topics are discussed: The status of the cotton boll weevil in 1906; local 

 variations and their causes; the relation between weevil damage and precipitation; 

 factors in the natural control of the boll weevil; additional data concerning importance 

 of fall destruction of cotton stalks; late planting. 



No. 166. Hunter, W. D., Newell, Wilmon, Pierce, W. D., 1907. — The insect enemies 

 of the cotton boH weevil. <Cir. 20, State Crop Pest Comm. La., 7 pp., 3 

 figs., December. 



Brief general account of the parasitic and predaceous insect enemies of the boll weevil, 

 with suggestions for increasing their usefulness. 



No. 167. Hunter, W. D., 1907. — The most important step in the control of the boll 

 wee^•il.<Cir. 95, Bur. Ent., U. S. Dept. Agr., 8 pp., October 3. Revised 

 edition: 1908, September 21, French and English editions. 



A revision of Cir. No. 56, Bureau of Entomology (see No. 152), with additional data 

 obtained from recent exjieriments. Following an introductory statement are presented 

 the results of a large practical test of the efficiency of the fall destruction of cotton stalks. 

 Reasons for the destruction of stalks in the fall are given; also a brief summary of the data 

 obtained from a large series of hibernation experiments upon which these reasons are based. 



No. 168. Hunter, W. D., 1908. — Boll weevil scarcer. <Texas Stockman & Farmer, 



vol. 26, No. 27, p. 7, June 17. 



Results of the first boll weevil status examination made by agents of the Bureau of 

 Entomology during 190S. 



No. 169. Hunter, W. D., 1908.— The cotton boll weevil in Oklahoma.<lst Biennial 

 Report, Okla. State Bd. Agr., to the Legislature of the State, for the 

 years 1907-1908, Part V, pp. 36-42. 



Brief history of the weevil in the United States and summary of its life history and habits. 

 The distribution of the cotton boll weevil in Oklahoma is outlined and a statement made 

 regarding prospects for injury by the pest. 



No. 170. Hunter, W. D., 1908. — Urges stalk burning. <Texas Stockman & Farmer, 

 vol. 26, No. 41, p. 3, October 14. 



The necessity of early fall destruction of cotton stalks as a means of lessening weevil injury 

 next year is urged and reasons for this operation set forth. 



