The Guthrie daily leader. [volume] (Guthrie, Okla.) 1893-1996, 1910-10-21
Lc. n. sanboqnL,

Bntomologlst Oklahoma Experiment Station)
More OF less needless confusion has arisen this
SUMMER concerning the control Of the web worm that
has been generally prevalent during the latter part OF
August, and the first part OF September
This worm generally occurs about three times dur
ing the summer The first brood appears careless
weed and similar plants, but is not generally noticed
on alfalfa. The second brood to some extent
on cotton and alfalfa The third brood generally dam.
ages alfalfa TO considerable extent In some localities
unless u is promptly controlled
There Is one indirect and two direct methods for
controlling the pest From now until the alfalfa be-
gins to grow in the spring is the time practice the
Indirect method, which is by renoyatng such alfalfa
fields as the renoyaor can be used without njurng
the plants. The fall plowing under OF all grasses and
weeds growing In the cultivated fields and the burning
OF weeds and grasses which cannot be otherwise de-
stroyed In the outoftheway and fence rows.
This will destroy their winter quarters that they
cannot withstand the inclemency Of the winter
One direct method of control is by moving the
alfalfa II 1t Is Of sufficient growth to be made into
hay when the worms begin to devour It, When placed
on a dry ration they Perish. The hay will not be
injured for market oHdeedins purposes by their pres
ence. .ioat
The other direct method is by the application OF
Paris green. Judgment should, OF course be used In
the application of amMsencal Lead arsenate should
not be used, account OF its adhesive quates stock
eating the hay would be poisoned If good rain fol
lows the application OF Paris green before the hay is
cut, no injury will result since the poison will be
washed from the plants to such extent that It will
If the alfalfa is young and not large enough for hay
the use of Paris green for controlling the web worm
is superior to any other remedy.
Paris green should be diluted at the rate OF about
one pound to ten of lime for ordinary applications
II the soil needs lime, however, there would be
objection to using any amount of 1t, so far the
effects of the Paris Is concerned II the latter is
equally distributed in 1t that be evenly applied
About one pound Of Paris green per should be
used alfalfa which Is less than three four inches
high and pound and half to two pounds on 1t when
taller.
dry application is the best form in which to use
the poison for this purpose The pole and bag method
Of distributing 1t is not perfect and should be used
only In case OF extreme necessity. The proper method
LIS by means Of duster which be arranged by any
one having little ingenuity and the proper tools
small tanning mill, similar TO that used In portable
blacksmith forges, can be used. This be made
e tin and gearing from old machinery. and arranged
on a spring wagon cutyator, or other light farmF
machinery In SUI way to do the work perfectly
Care must be used in gauging the amount of poison
used, Tor this adjustable feed valve should be
used between the poison vessel and the distributing
spouts leading out from 1t for blowing the material
broadcast while the machine Is being driven through
the field.
Regular dustng machines manufactured especially Z
for making such applications, are now on the market
at nominal cost. In has an orchard spray
ing machine with field attachment for applying {
liquids the Paris green could be mixed with water and
lime and applied at about the same rate per acre.
Such apparatus mentioned is often of great ad-
vantage in destroying boil in cotton and similar
insects field crops.