00 HIBERNATION OF THE COTTON BOLL WELYIL. 



in the rational met hod of fighting the boll weevil is plainly shown by 



these studies. 



Table X LV. ( 'omparison of summaries for longt vity of fed wet vils, by U n-day periods, 



in each locality. 



MALE WEEVILS. 





Number 

 of weevils 



Weevils dying within a period of— 



Locality. 



1-10 days. 



1 1 20 days. 



21-30 days. 



31-40 day-. 



41-50 days. 



51-60 days. 





Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Pel 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 



rent. 



Num- 

 ber. 



1 Vi- 

 ce lit. 



Dallas 



490 

 363 

 785 



1,638 



47 



86 



371 



9.6 

 23.8 

 47.3 



72 



.,1 



216 



14.7 

 16.9 

 27.6 



87 

 60 

 116 



17.7 

 16.7 



14.8 



68 



50 

 39 



13.9 

 13.8 

 5.0 



87 

 49 

 14 



17.7 

 13.5 

 1.8 



47 



41 



13 



9 6 



Calverl 



11 3 



Victoria 



1.7 



Total and 

 average. 



504 



30.2 



349 



21.3 



263 



10.0 



157 



9.6 



150 





101 6.2 



FEMALE WEEVILS. 



Dallas 



411 

 352 

 564 



32 



67 



293 



7.8 

 18.8 

 51.9 



54 

 63 



133 



13.1 

 17.7 

 23.5 



91 

 60 

 88 



22.1 

 16.7 



15.6 



46 

 58 

 24 



11.2 

 16. 3 

 4.3 



91 



54 

 11 



22.1 

 15.2 

 2.0 



37 

 32 



10 



9.0 



Calverl 



9.0 



Victoria 



1.8 



Total and 

 average . 



1,327 



392 



29.5 



250 



18.8 



239 



18.0 



128 



9.6 



156 



11.7 



79 



5.9 



WEEVILS OF BOTH SEXES. 



Total and average, 2,967 . . . 



896 



30.2 



599 



20.2 



502 



16.9 



2S5 



9.6 



306 



10.3 



180 



MALE WEEVILS. 





Number 

 of weevils 

 in series. 



Weevils dying within a period of— 



Locality. 



61-70 days. 



71-80 days. 



81-90 days. 



91-100 days. 



over 100 

 days. 





Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 



cent. 



Dallas 



490 

 363 

 785 



36 

 7 

 4 



7.3 



1.9 



.5 



31 

 6 



8 



6.3 

 1.7 

 1.0 



5 

 2 

 3 



1.0 



1.6 



.4 



7 

 2 

 



1.5 

 .6 



2 

 



0.4 



Calvert . 

















Total and 

 average . 



1,638 



47 



2.9 



45 



2.8 



10 



.6 



9 



.6 



2 



.1 



FEMALE WEEVILS. 



Dallas 



411 

 352 

 564 



32 

 9 



4 



7.8 



2.5 



.7 



22 

 3 

 1 



5.4 

 .8 



.2 



4 

 5 



1 



1.0 

 1.4 



.2 



1 

 2 

 



0.2 

 .6 







1 

 1 







0.2 



Calvert... 



.3 



Victoria 





Total and 



1,327 





3.4 



20 



2.0 



10 



.8 



3 



.2 



2 



.1 



WEEVILS OF BOTH SEXES. 



Total and average, 2,965. 



92 3.1 71 2.4 20 0.7 12 



I 



4 0.1 



