The Glenwood post., 1908-07-04
FIGHTING THE
PLANT LOUISE
REMEDIES FOR DESTRUCTIVE
PEST THAT WORKS AT THIS
SEASON..
N U M MEROUS RECIPES
RECOMMENDED BY THE STATE
ENToMoLoGIST OF COLO
RADIO.

This is the time of the year when
plant lice or green flies" as they are
often called, make their appearance
upon many of the cultivated plants
in our orchards and gardens, and
many inquiries are received at the
Colorado Agricultural College as TO
what remedies can be used to destroy
these lice or to keep them in check.
The plant lice increase very rapidly
and it is often necessary to repeat
treatment two or three times before it
is possible to rid thoroughly ones
plants of them. The habits of the diff
ferent lice are so similar that the REM
edy that will destroy one kind is al
most sure to do about equally well for
almost any other.
The following are few of the best
remedies to be used, any one of which
will prove effectual if thoroughly ap-
piled:
Kerosene Emulsion.-Dssolve one
half pound of any good bar soap in
one gallon of water by shaving the
soap in thin slices and heating the
water to boiling temperature. When
thoroughly dissolved, remove the re-
ceptacle from the fire and add at once
two gallons of kerosene and agitate
tht NlSplbuoly do BooSibIo
by stirring, or better, by pumping the
liquid forcibly back into the vessel
containing it, using spraying nozzle.
If successful the mixture will so emul-
sify as to appear like a creamy mass,
and oil will not rise upon the surface.
If the emulsion is not thoroughly
formed, the mixture of oil and soapy
water may be again heated until it be.
gins to boil, and then quickly remove
and asitate again. If this is done. the
liquid must be watched to see that it
does not boil over and take fire. AS
soon as emulsifed, dilute by adding
twenty-seven gallons Of water. This
will make mixture one-fifteenth OIL
Spray thoroughly upon the plant lice
at any time of day. q
Whale Oil Soap.-There are several
brands of whale Gil or fish oil soap
sold upon the market for the purpose
of killing insects. Almost any of these
will be found effectual in killing the
plant lice if simply dissolved and APP
piled in water in the proportion of
one pound to eight gallons. This spray
is used as in the case of a kerosene
emulsion
Black Leaf Dip.-The tobacco dip,
which is sold under the name of BLACK
Leaf dip for the purpose of killing,
parasites upon domestic animals is
also a very effectua spray for the de-
struction of plant lice upon plants.
Use in the proportion Of one gallon Of
the dip to each seventy gallons of
water. Spray thoroughly as in the case
of kerosene emulsion.
Tobacco Decoction.-If one cannot
obtain the Black Leaf dip he may pur-
chase either tobacco stems, tobacco
dust or whole leaf tobacco and make
decoction, using one pound of the
whole leaf tobacco, or two pounds of
either the tobacco dust or tobacco
stems, for each four gallons of water.
Put the tobacco in water enough to
thoroughly cover it, and steep just be-
low the boiling point for at least one
hour. Do not boil and do not use any
lime in the preparation. Dilute to tho
required amount as mentioned above
and apply.
AS any of the above preparations
kill by coming in contact with the
bodies Of the lice, it is necessary in
every case, to make very thorough
application of the insecticide Some
times the mixture can best be used by
dipping the plants into it; but in most
cases the application is best made by
using force pump and spraying noz-
zle and driving the liquid with a great
deal of force upon the plant lice.