Americus times-recorder. [volume] (Americus, Ga.) 1891-current, 1924-12-12
Boil Weevil Poisoning


weevil, it is necessary mat the
poison be driven inside the
shuck of the square, the wee
wills hiding place"
This fact and the additional
one that calcium arsenate must
be thoroughly distributed over
the plant in such a way that it
settles quickly on every part of
the plant, has been determined
by recent experiments by the
Georgia State Board of Eto-
mology. i.
If best results are to be had
1t is further necessary that cal
cium arsenate of the highest
quality be used, advises Ira w.
Williams, state etomologist, in
statement in which he says:
Everyone knows that if you
have a granular coarse substance
1t will not spread thoroughly
over the plant, as a very much
finer dryer will, and it will NOT
pass through the distributors
nearly as well as when in a more
complete dust form. Calcium
Arsenate running 90 cubic inches
70 the pound in density will cover
about 1-3 a greater area than
that running 70 to 80, as great
deal sold in this state last year
analysed.
1T will also be very much
more toxic to the weevil when
finally ground, because ittpasses
into the stomach of the pest
more readily, and more of it is
taken up by the weevil. The
death rate to the weevil is
greater with the finely ground
powder, running 90 to 100 in
density. This has been proven
BY tests made by this Board,
Harsh or granular material is
gummy and will clog the busting
machinery, all of which is the re-
suit of improper manufacturing
processes, and is NOT econom-
ical and should NOT be bought
at any price,
1--WE recommend Quality
which is efficient as we'll as
economical. 1t requires great
de al more time in manufactur-
ing plant to manufacture cal
cium arsenate running 90 to 100
per cent in density than below
this. We nave learned this by
study and observations in diff
ferent manufacturing plants.
Calcium arsenate should run
~ per cent in arsenical oxide.
This is more toxic, and should
a small deterioration take place
It would not become too weak.
1T should NOT contain over "a
of / per cent free arsenic. The
standard z of the United States
government is: 1st-Arsenic OK
Observation-Disclosures under 40
per cent, 2nd-Should not con-
tain over ga of l per cent wa
ter soluble arsenic. 3rd--Should
NOT be less than 80 cubic inches
Per pound being the standard
1.-THE Georgia State Board of
Entomology in its contracts for
furnishing calcium arsenate to
the farmers for the coming year
Is requiring that it shall NOT be
under 80 cubic inches per pouni
in density, not under Al per cent
arsenic pentoxide. 1t IS cur opin-
ion that calcium arSenate prop
erly manufactured and carried
over to next year vii. 69terio-
rate: certain|, NOT to any ap-
p cIiable. extent, 5pt. we know
from studying the analyses Of
the different companies goods
manufactured this year, that
there is q great deal of calcium
arsenate on hand that will NOT
meet the, government require
inents, nbr the requirements o.
the State Board of Entomology
Under its contracts
calcium arsenate that does
NOT meet the requirements can
be manufactured cheaper than
the high grade calcium arsenate.
IL is very important to the far
fier that his calcium arsenate
be Of the highest grade or quail
ity in order to carry on the fight
against the weevil. The Board
will see to it that all cadmium
Hrsenate passing through its
hands for the season of 1925
will be of the highest quality,
and will meet the requirements of
its contract-41 to AZ per cent
arsenic pentoXide (As-205) and
80 in density. The Boards ar
fangements for another year will
enable it to make some good
prices for the season of 1925,
and will make announcements
the first of January on the high
est quality of calcium arsenate
guaranteed to meet the States
contract requirements for quail
ity."
We can not KNOW too
much about boil weevil poison
ing, and it is well to keep in
mind the facts that come to us
from those who are daily study
Al -s...sl