Lincoln County leader. [volume] (Toledo, Lincoln County, Or.) 1893-1987, 1915-06-04
THE CABBAGE AND
RADDISH MACCOT

greatly damaged Dy caDDage ana rad
ish maggots. Mr.. Wollas wrote to the |
Oregon Agricultural College and got
the bulletin on the subject. which we
reproduce here sor the benefit of our
readers:
"The cabbage and radish maggot oc-
ours as small white maggot, about
thirty-two one-hundredths of an inch
in length, injecting the roots and un-
derground portions of cabbage. rad
ishes, turnips, caulifiower and similar
crops. This pest is the most serious
one to these crops which we have in
the state of Oregon.
The adult insect is a two-winged fly,
not unlike the common house fly. 1t
is slightly smaller in size and brown in
color with the wings extending farther
back over the abdomen. This fly ap-
pears in the fields and deposits eggs
on the surface soil about the base of
the plants 1t attacks. The eggs hatch
In from one to three days and the
young maggots burrow their way into
the food plants. When matured,
which will be in about ten days, these
maggots emerge and crawl out into the
surrounding soil where they form a
little brown puparium. From this
'puparium the adult fly soon comes out
to again deposit more eggs, and thus
repeat the life cycle. The winter Is
passed by this pest as maggots pupae,
and as adult flies, in and about the
patches which have been infested the
previous summer. Therefore, first of
all, the cleaning up of all the surface
refuse crops and burning off or plow-
ing under the waste grass and weeds
about the borders of the feld are very
necessary in the early part of the
spring. For treatment at this time in
the field, some Of tie following con-
troll measures are suggested. First of
llall. the tarred felt disks are very ef-
! fective in the case Of cabbage, cauli-
flower and similar crops. II applied at
the time the plants are set in the
field. Where this.is not possible, one
Of the following solutions should be
used, crude carbolic acid emulsion, or
corrosive sublimate solution.
Crude carbolic Acid Emulsion
The crude carbolic acid emulsion is
prepared as follows:
Water',,,,,,,i,....one gallon
Whale Oil Soap. .......1 pound
Crude Carbolic Acid. :. 4 pint
Dissolve the soap in the heated
water, remove from the fire and add
the crude carbolic acid, with continual
vigorous stirring. Continue the stir
ring until the mass is Of thick creamy
consistency. and will not separate on
cooling. This is then known as the
stock solution. To one pint OF this
stock solution add thirty-eight parts
of water when applying to the field.
This material viii kill the eggs and
the young maggots.
Corrosive sublirate Solution
The corrosive sublimate solution has
been recommended very highly by
some of the growers. II should be
used very dilute, and sparingly al
first, until one finds out what IL will
do. Experiments with this solution
are being continued here and It will bt
possible to report more fully later IL
the season as to Just what this ma
terial will do. Suggestions for its us,
are as follows:
Corrosive Sublimate. q ounces
r Water. .25 gallons
: Either OF these materials may b
very conveniently applied to the gar
den by simply taking an old water
/. ing pot, removing the sprinkling a
+ tachment. and pinching down tn
J, spout so 1t win pour a stream abou
- the size Of a lead pencil The su
d face soil about the plant to be treate
}. should be saturated with this solution
To be effective. this treatment shoul
, be repeated every week, as Il gets on
the eggs and very small maggots."
4.