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POISONING COTTON-BOLL WEEVILS. 9 
large and leafy and the weevils had multiplied so rapidly that one of 
the heaviest infestations ever witnessed by the writer prevailed. 
Blooming had practically ceased and the weevils had cleaned up the 
squares so thoroughly that they were attacking the bolls in enormous 
numbers and all bolls, even to the largest present; were being riddled 
with punctures. It seemed probable that on one section no bolls 
would be left to open. It was, of course, too late to attempt to set 
a new crop by poisoning, but an effort was made to save the bolls 
then present on the plants. For this purpose large-scale treatments 
were continued from August 23 to about September 1, several hun- 
dred acres in all being treated. At the beginning of the work a series 
Fic. 6.—View along dividing line between poisoned and unpoisoned cotton in Lake Vista Cut No. 2, with 
poisoned cotton to left of view; second picking only, October 26, 1917, Scott, Miss. 
of counts showed that 86 per cent of the squares in the cotton 
_ which was to be poisoned had been weevil-punctured. This cotton 
Was given a single poisoning and, about 10 days later, it was found 
that the weevil infestation in these same cuts had been reduced so 
that only 36 per cent of the squares were punctured. During the 
same period the infestation in the adjoining unpoisoned cotton had 
been 1 increasing steadily. Practically all of the poisoned cuts started 
blooming again at this time and a number of them reached what 
is ordinarily termed the ‘‘flower-garden”’ stage of blooming, five 
to seven blooms per plant on a single day being not at all rare. 
In starting this treatment it had been anticipated that several 
applications would be necessary to produce the desired result, but 
