Wood River times. [volume] (Hailey, Idaho) 1882-1915, 1893-04-26
THE APPLE WORN.
A Brief Account In the Interest Of
NtYada Annie AraMe1a

Newspaper Bulletin No. 4, which
treats upon the apple worm, has been
issued from tho Agricultural Expert
ment station 1t the State University,
Reno, New. This is ths worst insec,
pest in Nevada at tho present time
Its prevalence and the limits of it,
distribution have increased wonder,
fully within the past few years.
While some orchards are only slightly
affected others arc most thoroughly
stocked. This later condition will be
common to all in the near future.
This insect, the mature form of which
is known ss tho coddling moth, oriei-
nslly came from Europe, was brought
into California about twenty years
ago. and probably came into Nevada
fiom our neiRhbor State.
The natural history or habits of this
insect should be understood to make
evident the reasons for tho lines of
treatment commonly employ
The sworn" so familiar to all is
produced from an egg deposited upon
the apple by a small moth. This
parent is capable of laying from so to
100 eggs, and in almost eli cases bu,
a single one is placed upon an apple.
In this process . rough place is PIE.
ferred, consequently tho eggs OF the
6rst brood (of which later there are
two or possibly three each season) are
placed ut the "blow" end of the form
ing apple. This occurs 1t the time
the blossoms fall or soon after.
Tho manner and time OF egg LAYING
are very uniform habits with this in.
sect, and are al important in the cor.
sideration of remedies.
In the course of . week the egg
matches and the young worm at once
begins to gnaw toward the core Of the
apple. The worm attains ito growth
while in the fruit; then leaves it to
form the pupa. Much wormy fruit
will have fallen by this time, but in
any case the worm seeks some pro-
tectiug orevice in which to pass the
pupa state. None better is afforded
than the spaces between tho Young
bark and tho old scales. Here ooooons
may be found IN great numbers.
Ihsee or four weeks are spent bv
the worm in the fruit and two weeks
at the least in the pupa, which re mains
surrounded by the white silken CO.
coon. by the middle of June. or
possibly before, q second brood of
moths appear. BY July LIST these
havc visited the apples and deposit. d
eggs for the third brood.
The young worm takes for its FRS,
meal . small part of the outside of the
apple. Let the surface OF the frui,
be thoroughly poisoned and the de.
sired end is gained. The worm is
killed before it enters the fruit.
At this season many cocoons NAV
be destroyed by scrsping the rough
bark from the trunks of the trees and
clearing all refuse from under the
trees. Let all this be burned. Bands
OF cloth may be placed about the
trunks . foot or more above the
ground. The worms will resort to the
folds OF these. BY June frs. these
may be dipped in hot water and 40 .io
placed about the tree, the process to
be repeated at intervals later.
Poisoning is accomplished BY sprav-
ing on the fruit either Of the srs. MA
poisons. London purple or Paris
green. These are used in water
mixture (they will not dissolve aud
form q solution) one pound of London
purple to 200 gallons OF water. Dur.
log the application process these mix.
lures must be kept we'll agitated, 9th.
erwise the first used is too weak and
the last too strong. The tendency of
these compounds is to destroy foliage. |
oausing It to turn brown and fall.
This must not be permitted to occur
10 any great extent.
The first spraying should DO done |
It the time the blossoms are falling.
This is in time to catch the first eggs |
md sufficiently late to save the bees
rom poisoning. A second applioa-
hon ten days after the first, and 40 ain
It six and eight weeks after the frat.
should result in saving almost all of
he fruit.