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ture stages continue to develop after frost. At College Station we 
were unable to ascertain that any of these come to maturity or survive 
the winter under normal conditions, and we believe this to be the case 
generally in central and northern Texas. In southern Texas, especially 
the more southwestern part, the conditions are different, however. 
In February and March, 1963, we received a large number of bolls 
from Devine, Tex., containing larve, pups, and adult weevils, mostly 
newly transformed. Some of these were found within the seeds, but 
there is comparatively no danger that they would ever be dissem1- 
nated in the seed, since practically none of the cotton in which they 
entered the seeds would ever be picked and ginned. Many of these 
weevils were alive early in April, and in southern Texas would have 
emerged before that time. Out of 200 bolls picked at random 20 per 
cent contained living or dead weevils in some stage, and of these 55 
per cent were alive. Mr. W. P. Allgood, who sent the bolls, at the 
writer’s request, made careful counts, which showed that in the fields 
from which the bolls were secured there were about 10,500 weevils per 
acre. If but 20 per cent of these had survived and had emerged in 
the spring, there would have been 2,100 per acre, and this is approx- 
imately the number which survived during the last winter (1903-4) 
in Lavaca County, when the number surviving hibernation was 
unprecedented. Furthermore, the rainfall at Devine was nearly 
double the normal during this winter and weather conditions were 
exceedingly unfavorable for the hibernation of weevils had they been 
hibernating in the fields in the usual situations; but inside the bolls 
they were well protected from dampness and the temperature was 
never so low as to injure them. The importance of the absolute 
destruction of the stalks in southern Texas, even if deferred until mid- 
winter, is therefore apparent, although in the rest of the State it is 
valueless after killing frost. 
Regarding the places of hibernation we have been able to secure 
but little direct evidence. Just after hibernation commenced Mr. 
Conradi was able to find four weevils under leaves in a cotton field 
and under bark of a log adjoining it, but later in the winter absolutely 
none were found. Though many days have been spent in the most 
careful examination of the places where the weevils are supposed to 
hibernate, we have found but one individual in midwinter. <As this 
has been our experience in hunting for other hibernating insects, how- 
ever, we are not surprised. There is, nevertheless, abundant indirect 
evidence that most of the weevils hibernate in the cotton fields and in 
adjoining wocdlands. Infestation usually commences in the spring 
along a woodiand or hedge row, and is worse in a field which has 
been in cotton than one in corn. It is worse where sorghum adjoins 
cotton, as the sorghum stubble or stacks seem to form a safe shelter 
for the weevils. Furthermore, we are compelled to believe that the 
