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 J:0 squares, or about twenty times as many 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- 

 stanth" forming, there is a tendenc}' 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. 



- 



Date of examination. 



en 



•3 



OS 



(4-1 



O 

 (-1 



a 



Squares. 



Blooms. 



g |, Wee- 



Yield per acre. 

 Pounds of seed cotton. 



- 



Variety. 



C 

 ft 



ft 



"3 

 -i-> 



-6 

 S 



o 

 G 

 3 

 ft 



O 



G 

 ft- 



0) S 



<o 

 Oh 



ft 

 ft 



2 

 ft 



-3 



OS 

 ft 



P-i 



-1^ 

 a) 



ft 

 



c 

 ft 



ft 



"3 



-i-> 

 



i 

 j 



0) 



+j 



1 



OS 



M 



CO 





 

 1-1 



PL. 



6 

 "3 



bi) 



g 



M 

 



■ft 



3 



Q . 



bi) 

 H 



3 

 



■ft 



§ 

 u 



<£ 



3 

 ^ 



GO 



"3 



Jones Im- 

 proved . . 



June 18 

 July 11 

 Julv 27 

 Aug. 12 

 Sept. 5 

 June 18 

 Julv 11 

 Aug. 12 

 June 18 

 Julv 11 

 Aug. 12 

 Sept. 5 

 June 18 

 July 11 

 Aug. 12 

 June 18 

 Julv 11 

 Aug. 12 

 June 18 

 July 11 

 Julv 27 

 Aug. 12 

 Sept. 5 



20 

 25 

 30 

 10 

 5 



2a 



25 

 10 

 20 

 25 

 10 

 5 

 20 

 25 

 10 

 20 

 25 

 10 

 20 

 25 

 50 



9 

 51 

 21 

 34 



1.5 



9 

 35.2 



1.8 



8.3 

 44.7 

 20.5 



1.9 

 11 

 36.8 



1.5 



9 

 28.9 



2.5 

 12 

 10 fi 





























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 



1 



1 















I 



1 













Allen 



7j 1 



20 Sept. 17 



104 



Oct. 20 



98 



202 



" 











23 

 38 



1 

 3.8 



12 

 208 





.5 

 24 

















Excelsior . 



125 



35 



50 



30 



-- 



... Sept. i7 



178 



Oct. 20 



80 258 



" 





1 



59 



132 



.4 

 13 

 64 



"42 

 110 



11 

 31 



.5 if) 



"s 



.4 

 12 

 6 







1 













3 



119 

 4 



6 

 20 

















4 



80 



Sept. 16 



172 



Oct. 20 



92 264 





Parker 





















11 

 47 



.5 

 4.7 



11 

 211 





.5 

 22 





















Griffith. 



55 



2 



14 



62 



15 



6.3 



6 

 21 



97 



6 



'2 



10 



Sept. 16 



184 



Oct. 20 



60 



244 







"74 



13 

 31 



.5 

 3 



6 

 69 





.24 



8.5 



















King 



16 



3 



30 



Sept. 17 



136 



(?) 



(?) 



(?) 







1 



f- 



bi 



144 







13 



12.7 

 51 



.5 

 2.5 

 5 



24 

 486 

 233 



20 



40 



1 



9 



23 



17 









! 













.8 

 12 

 51 



6 



97 



160 



1 



1 















10 47. 5 

 5 57 



6i 3 

 2511 



30 

 220 

















Sept. 16 



290 



Get. 20 



68 



358 

























