HIBERNATION AND DEVELOPMENT OF BOLL WEEVIL. 



37 



Table X. — Comparison of progress of infestation by boll weevil and production of fruit 

 upon plats of cotton at College Station, Tex., in 1904- 





o 



a 



03 

 X 



O 



a> 



3 



to 



O 

 u 



01 



























Yield per acre. 













Pounds seed cotton. 





>> 



'u 

 > 



o3 

 ft 



0! 

 Ph 



"3 

 O 



Eh 



•6 

 t 





 



6 



B 

 ft 



c . 



S-i 



p-l 



0) 



ft 

 ft 



2 

 ft 



Is 



ft 







ft 

 



C 



S3 



"ft 

 0) 



ft 









'3 



CO 



M 



S 

 xn 





 

 I— 1 



CM 



6 



bib 



PI 



•rH 



■ft 



OS 

 .1-4 



i 







bib 



fl 



"ft 



1=1 

 



% 



+-> 







m 



0) 



M 





May 22 



9. .^nn 























2 



2 



0.08 

 .08 















o 



May 30^ •'^no 



































^^^ 



June 17 

 June 9 

 June 15 

 June 27 

 July 13 

 Sept. 12 

 May 22 

 May 30 

 June 9 

 June 15 

 June 17 

 June 27 

 July 13 

 Sept. 12 

 May 22 

 May 30 

 June 17 

 June 9 

 June 27 

 July 13 

 Sept. 12 

 June 7 

 June 17 

 Sept. 16 

 June 7 

 June 17 

 June 29 

 June 7 

 June 17 

 June 29 

 Sept. 16 

 June 18 

 July 14 

 Sept. 16 

 June 14 

 June 29 

 July 14 

 Sept. 16 



400 



320 



400 



400 



50 



25 



2,500 



2,500 



320 



2,500 



400 



380 



50 



25 



1,200 



1,200 



50 



250 



400 



50 



25 



200 



200 



25 



275 



200 



290 



530 



200 



364 



25 



100 



40 



25 



50 



5.5 



36 



1.6 



5 



























Sr 















3 

 2 

 

 1 



36 

 1 



10 

 3 

 5 



(«) 

 

 2 



46 

 4 



14 



(a) 



2 







2 



37 

 

 2 



24 

 2 

 7 

 

 8 



21 

 



32 

 6 

 6 



31 

 7 

 



11 

 . 46 



.9 

 .5 







2 

 144 

 .04 

 .4 

 .9 

 .2 















CC rH < 



































^^ 



15 

 39 

 4.5 



12 



7 

 98 



.2 

 .35 



86 







34 



174 



166 







0.43 

 3.3 



55 

 307 



... 



0.13 

 6 1 



108 















Cf^ 















^^ 



455 9.9. 



Aug.28 



258 



Sept. 14 



252 



510 



S9 

















































































































bo's. 



4.8 

 22 

 43 



6.5 



21 



14 



18 



142 



1.2 

 .2 

 .83 

 86 



1 

 92 



38 

 (a) 



























G . 



164 

 178 



.43 

 3.8 



91 

 309 



49i 



.24 

 6.2 

 23 



"83 







4 



184 



.3 



1. 1 







.8 

 

 4 

 148 















5J^ 















S 



Aug.27 



313 



Sept. 10 



318 



661 



4 



~ bibf 











r.c 





































9.7 



25 



5.1 



7 





























ssJ 

























nP^ 



25 

 33 



1.3 







'i."8 



.... 



26" 



ie" 



2.8 



25 

 63 

 3.2 

 99 



152 

 19 

 27 

 

 3 

 34 

 29 

 32 



111 

 55 

 61 



128 

 65 

 22 

 1140 

 71 

 47 

 30 



437 



219 



1.5 

 1.1 



84 



8 



47 

 («) 



53 



243 







.13 

 4.8 























QJ fc^ 



226 



766 



4.5 

 31 



"96 















pq a 

 < 































Na- 1 



















1 



96 

 .7 

 3.5 

 



1.5 



10 







128 



6 



15 



124 



14 







27 



184 















tive. 



79 



(a) 











217 



10 



36 

































Na- 1 





























tive. 



8.8 



113 







190 













































Na- 





1 



























tive. 1 



i. 7!l37 







156 























91 

 1.1 



44 



88 

 6.1 

 1.1 



57 



92 



(a) 



6 



395 



(«) 



22 



154 



121 



(a) 







147 



7.4 



39 















Na- 1 























65 



1.6 



537 



265 



13 

 14 



'85 















tive. 

















583 



















Na- 



398 41 





616 

 419 





















tive. 1 



40 

 25 



18 

 9.5 



55 



1.4 























211 



11 



72 



























1 







a Not counted. 



'^ Consisted of a large number of varieties. 



Note. — The five plats of native cotton referred to were planted by different farmers in the vicinity 

 of College Station. 



The proportion of squares punctured by the end of the first month 

 after squares have commenced to form has been found to range from 

 2.5 to 10 per cent. It is usuall}^ not over 5 per cent, and an average 

 proportion of 3 per cent would be more nearly correct. Thus, on the 

 Brazos River, July 13, 1904, but 8 per cent of the squares were punc- 

 tured. At the College on our main plats less than 1 per cent were 

 punctured. At Eckol's, on June 14, 1904, 6.1 per cent were punc- 

 tured and on June 29 but 1.1 per cent. In 1903 at the College not 

 over 2 per cent were punctured during the first month of square for- 

 mation. In the Brazos bottom in 1903 the proportion was less than 1 

 per cent. In 1901, on June 17, Mr. Teltschick reported to Professor 



