1907 - Pierce, W. D. Notes on the biology of certain weevils related to the cotton boll 



weevil. U. S. D. A. Bur. Ent. B. 63(2):39-44. 



It is assumed that parasites useful in controlling the cotton boll weevil may- 

 be found by studying its nearest relatives. Onthis account biological and economic 

 notes are given on Anthonomus disjunctus , A„ fulnus , A. squaniosus , Lixus mus- 

 culus, Orthoris crotchii, etc. 



1908 - Crawford, J. C. Some new Chalcidoidea. Ent. Soc. Wash. Proc. 9:157-160. 



Original descriptions of Cerambycobius cushmani and Catolaccus hunteri , 

 reared from the cotton boll weevil. 



1908 - Newell, Wilmon, and R. C. Treherne. A new predaceous enemy of the boll weevil. 

 J. Econ. Ent. 1:244. 



Note of the destruction of adult boll weevils by the carabid beetle Evarthrus 

 sodalis Lee. and by another species of Evarthrus . 



1908 - Pierce, W. D. The economic bearing of recent studies of the parasites of the 

 cotton boll weevil. J. Econ. Ent. 1:117-122. 



Summarization of the work of the Bureau of Entomology in an endeavor to 

 increase the efficiency of parasites of the boll weevil in Texas. 



1908 - Pierce, W. D. Factors controlling parasitism with special reference to the 

 cotton boll weevil. J. Econ. Ent. 1:315-323. 



Discussion of various factors which affect the abundance and efficiency of 

 parasites in controlling the boll weevil. 



1908 - Pierce, W. D. A list of parasites known to attack American Rhynchophora. J. 

 Econ. Ent. 1:380-396. 



Contains a list of all parasites known to attack the boll weevil. 



1908 - Pierce, W. D. Studies of parasites of the cotton boll weevil. U. S. D. A. Bur. 



Ent. B. 73, 63 p., Jan. 21. 



A report upon extensive studies of the parasites of the boll weevil and other 

 weevils. Contents: Introduction* History. The work on parasites in 1906. I, Ex- 

 amination work: Records prior to 1906; breeding records of 1906; most favor- 

 able plant conditions for parasitism of the boll weevil, field conditions, geo- 

 graphical considerations, boll weevil status, boll weevil chronology, conclusions. 

 II. Propagation work: Transfer or artificial propagation of parasites; field work; 

 release of parasites. III. Parasite breeding work: Occurrence of species; geo- 

 graphical and seasonal distribution of parasites; biological notes on the parasites. 

 IV. The source of the parasites: Parasites known to attack Rhynchophora; biologies 

 of the weevils contributing parasites; rotation of hosts. V. Conclusions and 

 prospects. Bibliography. Index. 



1909 - Hood, C. E. Types of cages found useful in parasite work. J. Econ. Ent. 2(2): 



121-124. 



Description of cages used in breeding boll weevil parasites. 



1909 - Howell, A. H. Destruction of the cotton bollweevilby birds in winter. U. S. D. A. 

 Bur. Biol. Survey C. 64:5, 1 map. 



A continuation of the investigation conducted by the Biological Survey on the 

 food habits of birds in relation to their destruction of the boll weevil. Collections 

 were made of birds found in and about cotton fields in central and northwestern 

 Louisiana during January and February 1908. Six hundred specimens, representing 

 50 species, were secured, of which 20 species and 81 individuals, or 13.5%, had 

 eaten boll weevils. More birds were feeding upon the weevils and many more 

 weevils were being destroyed by them than in any of the more western localities 

 where birds have been collected at a corresponding season. A record is given of 

 the birds examined which had eaten boll weevils, with brief notes on the status of 

 the more important winter birds. The relatively greater importance of weevil 



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