RECORDS PBIOB TO L906. 



13 



of the differences which prevail between squares and bolls and 

 between fallen and hanging squares or bolls. However, taking the 

 figures as they are, we have the following results: 



Xabli I. Total pi /•(■( nitii/i of parasitism of ih> boll weevil, by years, prior to 1906. 



Year. 



Months. 



Weevil 



Parasites. 



Percentage 

 ot para 



sil 



para 

 blsm. 



. . July 31 to August ll 801 



June 3 to 9 178 



March l to 23 (hibernating 1,006 



Aimust L2 to31 1,702 



6 0.99 



6 3.37 



32 3.18 



21 L.23 



Iii L905 some of the records differentiated between squares and 

 bolls, so that a comparison may be given between the percentages 



of parasitism in each. 



Table II. — Percentagt of parasitism oftht boll weevil in fallen forms at Gurley, Quinlan, 

 Victoria, and Waco, Tex., in 1905. 



Form. 



Weevil 



stages. 



Parasites. 



Percentage 

 ..i" para- 

 sitism. 





852 

 123 



17 1.99 



Bolls 





1 .81 











BREEDING RECORDS OF 1906. 



Although the work of 1906 was very incomplete in some respects, 

 it is representative of the conditions. The facts have been ascer- 

 tained one at a time, and as each one has been proved, it has been 

 found that more complete records should have been taken earlier in 

 the season. The material was collected at 25 representative locali- 

 ties in Texas, 2 in Indian Territory, and 5 in Louisiana. Seventy 

 collections of infested forms were made, comprising about 87,000 

 bolls and squares. The result is that these infested forms contained 

 39,183 weevil stages, of which 1,689, or 4.31 per cent, were para- 

 sitized. The material collected was separated into lots, according to 

 location and the nature of the forms. 



A brief classification of the results, b}^ months and by the four 

 plant conditions, gives some very important information. In the 

 first place, the percentage of parasitism is, to all intents and pur- 

 poses, about equal throughout the season and not highest in the fall. 

 It must, of course, be borne in mind thai the collections were not 

 made at regular intervals at stated places, but are from different 

 localities each month and include different factors. During Sep- 

 tember and October a number of localities on the extreme border 

 line were examined, but the percentage is not appreciably altered. 

 The plant conditions were altered also, so that one month there 

 might- be more squares than bolls, and another month more bolls than 



