The Bamberg herald. [volume] (Bamberg, S.C.) 1891-1972, 1919-12-18
CALCIUM ARSENATE
DEATH FOR WEEVL.
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CONTINUED from page 1, column g.
powder, and in gauging their applica-
tions, the farmers should pay more
attention to satisfying themselves
that they are accomplishing this than
to the exact poundage required.
Amount per acre.
However, they will find that they
positively can not give satisfactory
application with the machinery now
available with an average of less than
five pounds per acre per application,
and no man should expect to go over
an acre with less material than this.
In fact, he is going to find it takes
considerable care to dust the cotton
thoroughly and still not use more
than this amount to the acre. Con-
sequently every man planning to
poison the weevil should provide him
self with five pounds for every ap-
plication he is going to give.
'The number of applications re-
ouired for the season is quite an i'm
portant point but one upon which it
is very difficult to give generalized
advice. In the first place, this de-
pends entirely upon the type Of place
upon which the operation is conduct
ed. For example, in the Mississippi
delta, where the majority of expert
ments have been conducted in the
past, the average plantation contains
some 500 or more acres of cotton in
one organization and it is usually
found that on emerging from hiberna-
ton in the spring the weevils distrib-
ute themselves very unevenly over
this area. This results in more or less
of a concentration of weevils on fields
Immediately adjoining the most ia
vorable Information quarters and un-
der such conditions the best method
of control is to concentrate the pois-
oning on these most heavily infested
cuts, thus not only beneftting them
but protecting the remainder Of the
cotton by preventing weevil migration
later in the season. Under such con-
ditions it will undoubtedly be neces-
sary to give the highest cuts five or
six treatments and from this number
of applications will decrease on the
more lightly infested cuts, until those
most distant from Information quart
ers will probably not require any
treatment whatever.
... Use on Small Farms.
"On the average small farm, how
ever, the problem ON poisoning is an
entirely different one. Here, gener-
ally speaking, the area is so small
that it is impracticable to select the
most heavily infested spots and treat
them. In fact, it has often been
found that the weevils are rather gen.
orally distributed over the entire
acreage. The exact number of ap-
plications necessary depends entirely
upon local and seasonable conditions,
but for the present it is best to plan
to utilize about four applications.
$50 far two types Of busting ma
chinery have been developed. These
are the large powder busters and the
small hand busters.
THE power duster is horsedrawn,
motoroperated machine, blowing dust
from five nozzles, spaced Al feet
apart. Thus the nozzles cover approx
imately five rows. However, the fog
of dust created by this machine is
generally sufficient to cover two more
rows. Consequently, as general
thing it is best to plan to take seven
rows at a trip with the machine, al
though in case the cotton is very dry
and there is wind blowing, better
results will be secured by reducing
the feed slightly and taking only five
rows at a time. This machine will
probably cover about six or seven
acres an hour, although this, of
course, depends upon the exact ma
ture of the land being treated. 1t
is probable that no more than ten
hours of operation can be averaged
per day, which means about 60 or 70
acres per day per machine and is as
much as can be safely counted upon
at the present.
Owing to the necessity of repeated
applications, the acreage allotted to
one of these machines should be lin
tied to an amount which it can safely
cover every week owing to Interrupt
tions due to bad weather conditions,
etc., which are bound to occur, daily
operation can not be anticipated and
the best allotment of acreage for one