18 INSECT ENEMIES OF THE BOLL WEEVIL. 



Table V. — Monthly mortality of the boll weevil due to insects in hanging holls. 





Bolls 

 exam- 

 ined. 



Stages 

 found. 



Stages killed by— 



Percentage of stages killed. 



Month. 



CU- 



mate. 



Pred- 

 ators. 



Para- 

 sites. 



Total. 



Pred- 

 ators. 



Para- 

 sites. 



All 



insects. 



1906. 

 July 



434 

 8,762 

 4,224 

 3,629 



22 

 2,444 

 1,627 

 1,359 



2 

 281 

 130 

 186 



3 



340 



292 

 266 







155 



101 



66 



22.6 

 31.7 

 32.1 

 38.2 



13.6 

 13.9 

 17.9 

 19.6 



0.0 

 6.3 

 6.2 



4.8 



13.6 



August . 



20.2 





24.1 





24.4 







Totals and averages for 

 1906 



17,049 



5,452 



599 



901 



322 



33.4 



16.5 



5.9 



22.4 







1907. 

 July 



460 

 683 



38 

 393 



2 

 35 





 13 





 50 



5.3 

 25.0 





 3.6 





 12.5 







August . 



16.1 







Totals and averages for 

 1907 



1,143 



431 



37 



13 



50 



23.2 



3.0 



11.6 



14.6 







1908. 

 February 



12,451 

 1.239 

 2.132 

 720 

 664 

 432 

 519 



515 

 22 

 492 

 191 

 83 

 262 

 274 



424 

 21 

 63 

 23 

 7 

 36 



134 









 37 



7 

 17 

 11 



1 



54 

 1 

 58 

 22 

 2 

 5 

 8 



92.8 

 100.0 

 32.0 

 27.2 

 31.3 

 19.8 

 52.2 











7.5 



3.6 



20.4 



4.2 



.3 



10.5 

 4.5 

 11.7 

 11.5 

 2.4 

 1.9 

 2.9 



10.5 



March 



4.5 



July 



19.1 





15.1 



September . . . 



22.8 



October 



6.1 



November. .... 



3.2 







Totals and averages for 

 1908 



18, 157 



1,839 



708 



73 



150 



50.6 



3.9 



8.1 



12.0 







1909. 

 January . . 



3,941 

 430 

 653 

 365 



2,148 



857 

 35 

 81 

 42 



519 



335 

 13 



16 



1 

 217 



38 

 11 

 16 

 2 

 13 



43 

 

 

 



11 



48.5 

 68.6 

 39.5 

 8.1 

 46.4 



4.4 

 31.4 

 19.7 



5.4 

 25.0 



5.0 

 

 

 



2.1 



9.4 





31.4 



March. .... 



19.7 



August 



5.4 



December 



27.1 







Totals and averages for 

 1909 . 



7,537 



1, 534 



582 



80 



54 



46.7 



5.2 



3.5 



8.7 







