The Dawson news. (Dawson, Ga.) 1889-current, 1923-03-06
Effects of Methods of Control of the Boil
Weevil on the Control of Other Insects

teal; thus satisfactory boll-worm con-
troll should be secured as a supple
mentarv benefit to be derived from
weevil poisoning.
The Cotton Leafworm.
The relation between the cotton
leafworm or the so-called army
worm" and the control of the cotton
boil weevi1 deserves special attention.
Years ago the efforts OF entomolo-
gists and planters were directed to-
ward some means OF destroying the
leafworm. The use of Paris green and
other poisons was found to be very
effective. The complication OF the sit
uation since the arrival OF the Doll
weevil has caused decided change OF
attitude toward the leafworm. This in
sect usually does not become abund-
ant until late in the season; and I'M
less the boil weevil is controlled the
cotton plants are not setting any bolls
at that time Consequently the Leaf
worm does not injure the crop and is
really often beneficial, because it re-
moves the food supply of the boil
weevils. The use of calcium arsenate
to control the boil weevil also pre-
vents leafworm damage; thus such
poisoned fields are not subject to in
jury until bol1-weevil poisoning has
been stopped. Then, the question OF
whether or not additional applications
should be made to control the leaf
worm is to be determined entirely on
the basis of the young fruit on the
plants and the possibility of any of
this fruit reaching maturity before
frost if protected from damage. I'm
der such conditions poisoning solely
for the control of the 1eafworm is very
seldom necessary or advisable.
Summary of Control Measures.
The following is an outline of the
practical methods of controlling the
boil weevil described in detail in this
article. These methods are based up
on extensive study and much field ex-
Pronunciation. They represent practl-
cally all that is known about combat
ing the most important enemy OF the
cotton plant. They form a system
composed of several parts. A cotton
planter can insure success in proper
ton to the extent to which he COM
bines the different essential parts.
% When possible practice early
fall destruction of the cotton plants.
(2) Destroy as many weevils as pos
sible in Information by cleaning up
and burning over Information quarters.
Also, clear land whenever possible to
consolidate open areas and reduce
fields subject to early heavy intesta-
ton.
CD If you are not poisoning, plant
in fields located in situations where
weevil damage will be minimized. If
YOU are poisoning, however, plant
your fertile soil adjoining Information
quarters and concentrate your efforts
on thorough control of the weevils in
these fields.
az Prepare the land early and
thoroughly in order to obtain an early
crop. This means blowing and winter
working of the land.
go Determine the best distances
between the rows and between the
plants by experiments on local soils.
Once this is determined make every
effort to obtain perfect stand at the
desired spacing.
(6) Insure an early crop by early
planting of early maturing varieties
and by fertilizing when necessary.
(7) Continue to procure an early
crop by careful chopping to a stand
and early and frequent cultivation. Do
not lose the fruit the plants have set
bv cultivating too deeply or too close
to the rows.
(8) Study the instructions govern
ing poisoning very carefully, and if
your conditions seem suitable for prof
table work poison sthe weevils thor
oughly with powdered calcium arsen-
ate.
(o) Before attempting to poison OBJ
tain from the bureau of entomology
full and detailed instructions based on
your local conditions.
Or snnnnn harreis Of crude pc