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UNITED STATES PATENT OFFICE.
PHILIPP KOENIG, OF CUERO, TEXAS.
INSECTICIDE FOR BOLL-WEEVILS.
1,395,919.
No Drawing.
Specification of Letters Patent.
Patented Nov. 1, 1921.
Application filed September 8, 1920. Serial No. 408,809.
To all whom it may concern:
Be it known that I, PHILIPP KOENIG, a
citizen of the United States, residing at
Cuero, in the county of De Witt and State
5 of Texas, have invented a new and useful
Insecticide for Boll-Weevils, of which the
following is a specification.
The object of my invention is to provide a
novel method of compounding an insecticide
10 whereby the same will be effective in killing
boll-weevils, as a result of their inhalation
of the compound.
In preparing the compound I place twelve
pounds of arsenic (As2O,) and four ounces
15 of baking soda in six gallons of water, and
boil until dissolved. The solution is then
poured over three hundred pounds of wood
ashes. When thoroughly moistened by the
compound the ashes are placed in pans and
20 thoroughly dried over a fire. It is then pul-
verized by putting through a fine screen
sieve or mill. The insecticide thus produced
is applied to the cotton stalks by a suitable
machine which blows the poisoned dust over
the rows of cotton. The boll-weevils are 25
killed by inhaling the insecticide, and the
effectiveness of the mixture does not depend
upon their sucking it, as is the case with va-
rious prior insecticides used for killing boll-
weevils. Thorough tests of the compound 30
have shown that the boll-weevils are killed
within between one and twelve hours after
the application of my compound.
What I claim is:-
An insecticide compound for killing boll 35
weevils as a result of their inhalation of the
compound, consisting of a solution of arsenic
and baking soda in water said solution be-
ing boiled until the ingredients are dissolved
in the water, in combination with a large 40
quantity of wood ashes with which the poi-
soned solution is thoroughly mingled and
then dried in accordance with the steps here-
inbefore specified and for the purposes de-
scribed.
PHILIPP KOENIG.