34 



PAPERS ON THE COTTON BOLL WEEVIL, ETC. 



weeks following the formation of the first 2 squares the number of 

 squares will increase ten or twelve times; in other words, there will 

 be from 20 to 25 squares; and during the next 2 weeks this number 

 will increase two times, or at the end of the month there will be 

 about 40 squares, or about twenty times as man}' as at the beginning 

 of the month, when there were but 2 squares. At the end of the 

 second month there will be an increase of about two times over the 

 first month, or there will be approximately 100 squares to the plant. 

 During the first third of the third month the number of squares 

 usually remains about constant, but after that, tho squares are con- 

 stantly forming, there is a tendency to decrease for a time. 



Table VII. — Progress of infestation by boll weevil and production of fruit upon cotton 

 plats at College Station, Tex. , in 1903. 





"3 



2 



X 



<D 



<U 



ft 



.I* 

 | 



o 



- 



65 























Wee- 



Yield per acre. 









^ U11S - [ vils. 



Pounds of seed cotton. 





Variety. 



ft 

 t-< 

 a) 

 ft 



o 



ft 



g 

 o 



= 

 ft 



o 



o 



CI 

 ft 



•6 



z - 



u 



a> 

 ft 



a> 

 ft 

 ft 

 o 

 u 

 ft 



3 







ft 



ft 







<D 

 U 

 (1) 



ft 



— 



z 



c 



ft 

 u 

 <v 



ft 



3 

 



d 

 § 



a 

 ft 



o- 



1 

 ft 



6 



ft 



'bit 

 a 

 3 

 



"H, 



CO 



t-l 



E 



6 

 ft 



bit 



a 

 3 



ft 



- 



z 





 



0> 



go 



3 



- 



Jones Im- 

 proved . . 



June 18 

 July 11 

 Julv 27 

 Aug. 12 

 Sept. 5 

 June 18 

 July 11 

 Aug. 12 

 June 18 

 July 11 

 Aug. 12 

 Sept. 5 

 June 18 

 Julv 11 

 Aug. 12 

 June 18 

 Julv 11 

 Aug. 12 

 June is 

 Julv 11 

 Julv 27 

 Aug. 12 

 Sept. 5 



20 

 25 

 30 

 10 



5 



•_'() 

 25 

 in 

 •_>,» 

 25 

 Id 

 5 

 20 

 25 

 10 

 20 

 25 

 10 

 20 

 25 

 50 

 10 



5 



i 



51 



21 

 31 



1.5 



9 

 35.2 



1.8 



8.3 

 44.7 

 20.5 



1.9 

 11 

 36. 8 



1.5 



9 

 28.9 



■> 5 



























2 



11 

 19 

 90 



0.9 



• 7 

 9.1 

 56 



.... 



70 

 127 



8 

 37 

 31 



0.3 

 1.2 

 3 

 



1 



138 



126 



25 



























6 



4.6 

 12 



6 









































Allen 



7 



1 



20 



Sept. 17 



104 



Oct. 20 



98 



202 













23 



38 



1 

 3.8 



12 



208 





.5 

 24 























125 



35 



50 



30 







Sept. 17 



178 



Oct. 20 



80 



258 



" 





1 



59 

 132 



.4 

 13 

 64 



""42 

 110 



11 

 31 



.5 1 



"8 



.4 

 12 

 6 





















3 



119 

 4 



6 



'JO 





















4 



80 



Sept. 16 



172 



Oct. 20 



92 



264 





















11 

 47 



.5 

 4.7 



11 

 211 





.5 

 22 





















Griffith 



55 



2 



14 



62 



15 



6.3 



6 

 21 



97 



6 



"2 

 *3 



"io 



"36 



Sept. 16 



184 



Oct. 20 



60 



244 



-- 



King 



"74 



13 



31 



.5 

 3 



6 

 69 



-• 



.21 

 8.5 



ie 



Sept. 17 



*i36 



""(?)"""■ 



(?) 



(?) 



-- 



12 



72. 

 17.5 



57 



1 

 31 



57 



111 







13 



12.7 



51 



.5 

 2.5 

 5 



24 



isi; 

 233 

 20 



'"'' 



1 

 9 

 23 



17 























.8 

 12 

 51 



6 



97 



160 























6 



3 



30 

 220 

















25 1 1 



Sept. 16 



290 



Oct. 20 



68 



358 

















