The San Juan County index. (Aztec, N.M.) 1890-19??, 1902-03-28
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That the need and importance Of spraying
is being realized in many horticultural sao.
tions in the territory Is shown, in part. nv
the interest being taken In obtaining informa-
tion on this subject. During the past season
number ofletters we're received at the Station
In regard to spraying, and this season, already
inquiries are being received concerning fungi
cides and insecticides In view OF this. it has
been proposed to give In this article such in.
formation, concerning few Of the most com.
mon spraying mixtures as viii assist the
gardner or orohardistin spraying.
Bafdr9 dianu aainr- fha ..-.s-... 81,
few words should be said in regard to the
relation Of the food habita Of the insect TO the
remedies, Briefly stated there are two GLASSES
Of insects. biting and sucking The latter
group includes those insects which injure the
plants by inserting their tube-like mouth
parts into the plant tissue and draw up the SAP
Of the plant Common forms OF these insects
ace the scale insects, red spiders, woody aphis,
and other plant lice. The remedy must be one
that kills by contact with the Insect body such
rs kerosene, kerosene emulsion. and the soap
mixtures. Tho biting insects are those which
chew and swallow some portion Of the plant OF
fruit, The grass-hopper, many beetles. and
the Goblin moth larve are good illustrations,
The direct poison, such as paris green or other
arsenicals, Whi,h can be applied to the part Of
the plant that is eaten by the insect are the
sures remedies
Spraying mixtures are divided into insecti-
cides and fungioides. The latter division in
eludes those solutions used for fungous dis.
eases. Insecticides are the preparations used
against the insect pests, and they are divided
into two divisions according 70 whether the
insect to be treated is a biting OF sucking
one.
FUNGICIDEs
Bordeux MiEture.-This is the great remedy
for Fots, mildews and all iungOus diseases and
it is prepared as follows;
Copper sulphate Cblue slonel l........elbs.
tresn lime me............,.,,.,,....... 6"
Water........-. ..-....................5O so gallons.
Put the copper sulphato in a coarse sack and
suspend It in some water till it is all dissolved,
and dilute TO 20 gallons. Use either wooden
or an earthen vessel. Then slack the lime and
dilute TO % gallons and at the same timo stir
with paddle. An important point is to use
enoush lime, as it prevents the burning OF the
foliage. To determine II enough lime has been
used. in preparing the mix ture, add a few
drops Of solution OF ferro-cyanide Of potas-
! SUM- IT ihe IeirO-cy anido OF potassium does
not change no more lime Is needed, bntif 10
changes TO dark reddish color more lime
must be added and the test repeated.
INSECTICIDES
For sucking insects.
Kerosene Emulsion. This Is the old kero-
sene and soap emulsion and is prepared for
use as follows;
Hard soap or whale on soap. ...... X pound
/ Water preferably soft waterl col gallon
! Aetoaehe'.' s''s'.. ....s..................2 "
Cut sho soap IN small pieces 50 as 60 dissolve
quickly IN the water aud boil. Remove from
the tre and add the kerosene and churn or
agitate with small force pump, by pumping
ii back into the bucket, till creamy mass Is
formed, which may take from i've 70 ten
minutes. II used during the dormant season
Of plants dilute from one TO hve times. when
used on the foliage dilute from ten to twenty
times.
During the pastseas0n the station cOnduotod
extensive experiments iu spraying for the
eodliu moih Paris green aud white arsenic
were used and both gave good taufaotion
The resulta Of this investigation are expected
70 bespublished aoon IN bulletin form 10 Is
omportant that the spraying should be- done
well, otherwise the results may bo unsatisfao-
tory. .--Fabian aaroia, New Mexico College Of
Agriculture.