16 



PAUASITES OF THE COTTON BOLL WEEVIL. 



Table V. — Parasitism of the boll weevil in fallen squares, Brownsville, Tex. 



Date. 



Stages. 



1906. 



July 28 



August 3 



September 5 



B ptember 29 



1,568 

 115 



1.147 

 265 



Panuritefl Percentage 



laraitlJ - parasitized. 



50 

 2 



142 

 8 



3.2 



1.7 

 12.4 

 3.0 



Table VI. — Parasitism of the boll weevil in fallen squares, Ba i ill . Z\ c. 



Date. 



July 12 



August 8 



August 13... 

 September 3. 



1906. 



*■« *-—-538a 



656 

 442 

 884 

 678 



4.0 

 .45 

 22 



Table VII. — Parasitism of the boll weevil in fallen squares, Victoria, Tex. 



Date. 



Stages. 



Parasites. 



Percentage 

 parasitized. 



1906. 

 June 16 



864 

 667 

 396 

 652 

 829 

 423 

 535 

 560 

 518 

 87 

 1,026 



15 

 9 

 11 

 26 

 33 

 24 

 19 

 13 

 32 

 5 

 16 



1.8 



June 23 



1.3 



J une 25 



3.0 



June 2fi... 



3.9 



June 27 



40 



June 28 



5.7 





3.5 



July 9 



2.3 



July 20.. 



6.1 



July 22 



."). 7 





1.6 







Table VIII. — Parasitism, of the boll weevil in all forms, Waco. Tt 





Fallen squares. 



Hanging squares. 



Fallen bolls. 



Hanging bolls. 













1 «M 







«i-i 







,_ 







• 



°a 





• 



°s 





<r 



= = 





.■ 



-S 



Date. 





<s 



-■- 





o 



St! 





S 



- - 





:. 



(3 "" 





02 

 i. 



bo 









02 



- 



« 2 





g 



:. ■- 

 c - 



i 



J. 

 t 



- - 





















I - 











CO 



- 



p.ft 



CO 



- 



ft ft 



CO 



- 



Ph - 



■f. 



- 



- - 



1906. 

























July 25 



259 

 32 



26 

 2 



10.0 

 6.2 



99 

 22 



52 52. 6 

 3 13. 6 



44 

 24 





 



0.0 

 0.0 



22 



16 











0.0 



August 17 



0.0 



August 28 



1,217 



100 



8.2 



230 

 109 



45 19.5 

 26 23. 8 



215 



5 



2.3 



405 

 303 



47 

 36 



11.6 



September 20 





11.8 













p> 







Table IX. — Parasitism of th boll weevil in hanging forms, Dallas. I'. 





Hanging squares. 



Hanging bolls. 



Date 



Stages. 



Parasites. 



Per cent of 

 parasitism. 



Parasites. 



Per cent of 

 parasitism. 



1906. 

 August 29 



12 



118 



8 

 12 



l 

 6 

 

 



8.5 



5.0 

 0.0 

 0.0 



L82 



250 



610 





 15 

 10 

 39 



0.0 





8.2 



October ' 



4.0 



< October 6. . . 



6.3 

















