~ 
July, before boll weevils had become numerous enough to cut them 
off. After this time the growing plant continues producing new 
squares until frost, and the weevils finding ample food in them, allow 
the bolls set before that time to escape attack. This is upon the basis 
of giving the boll weevil full sway. 
If any serious effort is made to gather and burn the infested squares 
the danger season will be postponed until the end of August, which will 
insure practically an average crop. Table 2 is estimated upon the 
basis that only one-half of the breeding of the pest for the season is 
destroyed. Even upon this basis a study of the table makes it evident 
that the month of August is clearly placed on the safe side of the 
danger line. 
But no such poor results follow methods heretofore recommended 
(trap rows and gathering), and practical immunity can be insured if 
proper effort is made. 
FUMIGATING INFESTED COTTON SEED. 
The fact that cotton seed produced in the weevil district has a tend- 
ency to make a large plant growth before beginning to set bolls is 
not the only objection to be urged against its use. In discussing the 
life history and habits of the weevil, it was noted that many were gath- 
ered along with the seed cotton carried to the gins, the cotton ginned, 
and the weevils escaped destruction by coming out with the seed. 
The first beginnings of weevil infestations are often directly traceable 
to the cotton seed bought for planting purposes from badly infested 
sections. The seed should, therefore, be treated as it is ginned and 
stored. For this purpose use a pound of carbon bisulphide for every 
25 to 50 bushels of seed. Sprinkle it freely over the seed as the bins 
are being filled, and repeat the operation frequently. The fumes are 
heavier than air and will permeate downward. When the bin is filled, 
close all the openings securely. 
VOLUNTEER COTTON. 
The cultural methods advised thus far apply more especially to those 
districts where the seasons of the year include. severe, or at least kill- 
ing, frosts. In those sections where cotton stalks do not die, or are 
only killed down to the ground, the methods suggested are not so 
applicable. The method of grazing hereinafter discussed is especially 
applicable to such sections, and early spraying, also to be discussed 
later, becomes an important factor. 
At this time, therefore, there seems to be no reason why volunteer 
cotton culture should be condemned where that system is practicable. 
It should be remembered, however, that any method to be successful 
must be accompanied with the gathering and burning of the squares. 
The pan-shaking method at this time seems feasible and practicable 
only for the trap-row system properly developed. 
