BIOLOGY OF THE MEXICAN COTTON BOLL WEEVIL. 39 
PERCENTAGE Of 7OFAL 
FAINIALL OF FERIOD 
7O GIVEN CATE 
7-FPEPRCENTAGE OF WEEVILS 
LMERCLOD 7O LATE. 
AA 
FES SIA C/A APPL ALd4dY SUNLE- SUL Y 
Fig. 17.—Showing the total percentage of rainfall compared with the total percentage 
of emergence of the boll weevil, Madison, Fla. 
PERCENTAGE OF 
EMERCENCEIN TEAS 
—" REN TAGE O 
nn PELLEN TAGE OF 
Ae LMERGENCEW LOUISIAVA eee 
lis tube, 
Fig. 18.—TIllustrating the rate of emergence from hibernation of the boll weevil in 
Texas, Louisiana, and Florida. 
PLACLWIAGL OF TOHML LMERCLMCE 
g 
