Martinsburg statesman-democrat. [volume] (Martinsburg, W. Va.) 1906-1921, 1910-08-12
How to combat injurious insects.


Fer the purpose of controlling them,
insects may be divided into two class
viz, biting and sucking. The Bit
lax insects obtain their food by chew
Ing the Substance upon which they are
feeding Sucking insects, on the other
hand, obtain their food BY inserting
tleir beaks into the Tissues and suck
lug the sap. Potato bugs, or beetles,
are good examples of the first class,
wa'le plant lice are good examples of
TIE second class. Bearing this Foint in
mino, he insecticides are classified
into I'll Poisons and (h) Contact
ssfsys. When insects eat the foliage
the p'snt lie covered with a poison,
Which, when taken into the stomach,
Will Nil the insect. As rsepic is the
srincilai element used in making
sprays, they are gently SPOKEN of as
a'senical sprays.
When, on the other band, the insect
obtains its food by sucking, it 10 use
less TO apply poison spray, because
the paste would mot get 1t into the
stomash,i therefore, another class of
sprays is provided for, which kills the
insects, if they come in contact with
THOR If covered with 1t. These are
known contact sprays.
lNsECTITUDEs, AND How TO PRE-
PARE THEN For BITING INSECTS.
Arsenate of Lead tCommerciaD
FORMULAS.
Arsenate Of lead 8 lbs.
Water SO gals.
How TO PREPARK.
Mix the arsenate Of lead with a small
quantity of water, then dilute. Arse
nate of lead may be safely used =.
above directed on all but the most ten
der foliage. 1t Is light, remaining In
suspension readily; is not easily wash
cd OF by rains, and is conspicuous on
the tree, enabling the sprayer to de-
teet any parts Of plants not well COW
cred.
PARIS GREEN.
For potatoes, cotton, apples, pears
and plants have approximately the
same resistance: !
Paris green ID.
Stone lime lbs.
Water l25 to $50 gals.
For peach trees and other vegetation
with tender foliage:
Paris greco 10.
Stone lime 3 lbs.
Water 200 to $50 gals.
How TO PREPARE.
Mix the Paris green with a small
quaRtity of water to form paste, aud
dilute this to about two gallons. Stake
the lime in. another vessel, add 1t to
the Paris green mixture and stir. 1t
Is then ready to be diluted. Where the
spray mixture Is prepared according to
the above directions twill avoid the
formation Of Jumps, which cannot
be avoided where the Paris green Is
added to ,the barrel Of water In dry
form. The milk of lime must not be
omitted, as this will prevent the Paris
Green from burning the plants.
PARIS GREEN, DRY.
Paris green may be applied to the
plants in dry form by dilutiug it ten
to fifty tines with land plaster, flour,
road dust, or some similar material.
The action of dew and heat will dis
solve the arsenic m ore or less, and
when Paris green is used In this form
some burning Of the foliage may al
ways be. lex pected. There are powder
guns on the market especially adapted
for the application Of the dry powder.
For SUCKING INsECTs-KE KEROSENE
EMULSION.
Stock solution:
Kerosene gals.
Hard soap (soft soap, lib IL 10.
Water gal.
Dissolve the soap in the water over
fire. Remove tho kettle away from
the fire, add the kerosene and agitate
thoroughly from five to ten minutes.
This will give a smooth, CREAMY
emulsion from which the oil will not
separate after it is left standing several
weeks. Where spray pump is aces
sible, the emulsifying may be done
much more quickly by pumping the
solution into Itself from 3 to minutes.
This stock solution may be diluted 10
the proper percentage as follows:
For five per cent. solution, add 81
gallons Of alter.
For ten per cent. solution, add II
gallons of water.
For 10 per cent. solution, add 10 1-3
gallons Of water.
For 20 per cent. solution, add 7
gallons Of water.