BIBLIOGEAPHY OF COTTON BOLL WEEVIL. 11 



No. 111. Hinds, W. E., 1906. — Laboratory methods in the cotton boll weevil investi- 

 gations.<Bul. 60, Bur. Ent., U. S. Dept. Agr., pp. 111-119, 2 plates, 

 September 22. 



Descriptions are given of various devices used by the Bureau of Entomology in con- 

 ducting investigations on tlie boll weevil. 



No. 112. Hinds, W. E., 1907.— An ant enemy of the cotton boll weevil. <Bul. 63, pt. 

 3, Bur. Ent., U. S. Dept. Agr., pp. 45-48, 1 fig., February 5. 



The ant Solenopsis geminata Fab., var. xyloni McC, is discussed in its relation to the 

 boll weevil. 



No. 113. Hinds, W. E., 1907. The present boll weevil conditions. <Texas Stockman 

 & Farmer, vol. 26, No. 21, p. 4, May 1. 



Remarks on the weevil situation in south Texas this spring as compared with other 

 years. 



No. 114. Hinds, W. E., 1907.— Some factors in the natural control of the Mexican 

 cotton boll weevil. <Bul. 74, Bur. Ent., U. S. Dept. Agr., 79 pp., 4 pis., 

 2 figs., December 14. 



A very comprehensive report upon the investigation of several natural factors in the 

 control of the boll weevil. The three more important natural agencies in weevil control 

 to which particular attention was given are heat, ants, and parasites. After a preface 

 and introductory paragraph, the following topics are treated: Conditions requiring con- 

 sideration; influence of short drought in same season; influence of a dry season upon suc- 

 ceeding seasons; control by winter clhuatic conditions; relationship of factors of control; 

 investigations showing control by heat, ants, and parasites; natural control in various 

 classes of forms; desirability of retention or shedding of infested forms; mortality in bolls 

 versus squares; natural control in various localities; influence of climatic conditions espe- 

 cially; influence of cultural conditions; influence of period of Infestation upon natural con- 

 trol; cfliciency of natural control in various sections; mortality in each class of forms; sec- 

 tions profiting most by natural control; destruction of cotton forms by weevil attaclt or by 

 natural causes; summary and conclusions. 



No. 115. Hinds, W. E., 1908. — The first and last essential step in combating the boll 

 weevil. <JouTn. Econ. Ent., vol. 1, No. 4, pp. 233-243, August. 



Contains a brief statement of the economic importance of the boll weevil and a survey 

 of the results of investigational work on control, particularly by the fall destruction of 

 stalks. 



No. 116. Hinds, W. E., 1909. — Facing the boll-weevil problem in Alabama. <Bul. 

 146, Ala. Exp. Sta., pp. 81-102, 2 pis., 1 fig., June. 



A history of the spread and damage done by the boll weevil is given. The outlook 

 regarding the infestation of Alabama is discussed. 



No. 117. Hinds, W. E., and Yothers, W. W., 1909. — Hibernation of the Mexican cotton 

 boll weevil. <Bul. 77, Bur. Ent., U. S. Dept. Agr., 106 pp., 10 pis., 9 

 figs., October 18. 



A comprehensive treatment of the hibernation of the boll weevil, based upon all of the 

 experiments along this line conducted by the bureau up to the winter of 1907-1908. The 

 following are the principal headings: Entrance into hibernation, shelter during hiberna- 

 tion; hibernation experiments in small cages; large-cage exjwriments, Keatchie, La., 1905- 

 1906; large-cage experiments, 1906-07, Dallas, Calvert, and Victoria, Texas; emergence 

 from hibernation, 1907; longevity of weevils after emergence from hibernation; sex of 

 weevils surviving hibernation; relation of hibernated weevils to food supply; summary 

 and conclusions. 



No. 118. Hood, C. E., 1909. — Types of cages found useful in parasite work.<Journ. 

 Econ. Ent., vol. 2, No. 2, pp. 121-124, April 15. 

 Description of cages used in breeding boll wee\'il parasites. 



No. 119. Howard, L. O., 1894. — A new cotton insect in Texas. ^Insect Life, Div. 

 Ent., U. S. Dept. Agr., vol. 7, p. 273. 



The first authentic account of the occurrence of the species in the United States and 

 statements regarding previous reports of occurrence. 



