Albuquerque evening herald. [volume] (Albuquerque, New Mexico) 1911-1914, 1912-04-11

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their entrance not merely Is the
damage done, but the worms survive
to produce new codliRg moths for
further infestations. IL Is then OF
primary Importance 10 reach the
early worms. TO spray at proper
time. aud to spray thoroughly.
THE codling moth passes the win
ter IN the larvae stage and Is now
gradually transforming into "pupa,
which In turn gives issue to the adult
or moth proper The eggs are depos.
tied sometimes after the blooming
period OF apples and may later be
found upon the branches, foliage and
young fruit The newly Matched lar
vac or worms readily find their way
to the fruit and to a very great ex-
tent (about so per cent? enter the
fruit through the blossom cavity, the
'calyN cup"
Many fruit growers are familiar
with the fact that the calyx cup OF
the apple Is wide open shortly after
the petals or bloom dtOp, but closes
later, when the lohs OF the cup fold
over the opening. Thus the express
si0ns open and CLOSED calyx" II
has been found that the young larvae
iced Tor time within the calyx cav.
ity before entering the pulp Of the
fruit II then some poison is placed
In this cavity the LARVAE win be
killed before entering the fruit TO
place the poison here the spray mp.
pllcations must be made while the cup
is open, and the spray must be forced
from above down into the opening by
the use OF a pump yielding from 10
10 200 pounds pressure. Il ls also
necessary to employ nozzles of the
so-called bordeaux tyne, producing
"A coarse penetrating spray
"'rhe time OF bloom In the arid re-
giOns extends over comparatively
/ long period IN the Pccos valley IL
/ Is generally held that the north side
OF the apple trees bloom about one
week prior 10 the rest OF the trees.
resulting In the closing mp OF almost
one.half OF the calyx cups before all
the petals have dropped Since the
so-called calyx spray treatment IN
the most important for the season
Il is to be recommended that two
spray applications be made as fol-
lows: The first for individual trees
or parts Of trees from which the pet
ais have dropped, and the second ap-
plication. from eight TO ten days
after, when all the petals have drop
ped. Il Is 10 be remembered that a
tree IN fun bloom should not be
sprayed. During the second appliea-
ton all the trees ia the orchard
should be sprayed, including those
having already received the nrst ape
plicatlOn, because the time then ap.
proaehes tie period OF Matching OF the
FIRST brood Of larvae and the spray
Is 10 give additional protection against
those larvae that enter through the
side or stem end Of the fruit
THE effectiveness OF a spray ap-
plicatiOn will depend both upon the
efficiency OF the sprayer and upon
he care Of the man operating the
pray rod and nozzles, Every branch
should receive individual attention;
the operator should constantly bear
Ia mind that practically each fruit
that does not receive a dose OF pol
son In the calyx cup (which Is only
accomplished while the cup Is OPEN
will ultimately yield a wOrmy apple
In the course of the spray operation
take the time 20 verify the effective
ness OF the spray. Cut open now and
then an apple and see II any poison
actually penetrated the calyx cup.
"Arsenate OF lead Is now almost en-.
tirely employed against the cOdling
moth worm. Most fruit growers used
this poison az the rate OF two pounds
70 nifty gallons OF water. However.
recent experiments have shown that
good results are obtained By the use
OF only one pound OF arsenate of lead
TO fifty gallons OF water. The weaker
spray mixture Is 10 be preferred for
/ the calyx treatment, since Il encOur.
ages more thorough work and ensures
them better protection than a stronger
mixture poorly applied
'The results OF the calyx spray
Treatment will largely determine the
necessity OF subsequent applications
There are always few worms OF
the first brood that escape being pot
sOned, and these will later produce
a second generation, which becomes
lapparent al the picking time OF the
fruit The time OF Matching OF the
second brood larvae 81 not well ea-
iaDilshed and can first be determined
In the course of breeding expert.
lmenis, which are now an prOcress In
the laboratory OF the station. Timely
notices regarding the ACCESSIBILITY OF
later spraying will be- given out from
This station
Everybody interested IN the cod
ling moth problem rs Welcome TO visit
The laboratory on North Pennsylvania
laygnue 10 famlliarize themselves with
me different stages OF this insect and
iis life history.
Don9 H., the 49,, s,se,r ,.o,, oo