The progressive farmer. [volume] (Winston, N.C.) 1886-1904, 1897-06-29
WEEKLY DIGEST
Of Experiment Station Bulletins.

APPLE LEAF FOLDER AND LEAF CRUNIPIER
Bulletin S6 Of Missouri Station, treats
or two insects which have within re-
cent years becomes quite destructive to
orchards and nurseries in that State.
Complaints OF the ravages of the
Lesser Apple Leaf Folder became so
general that the entomologist of the
station was sent to badly infested
nursery near Kansas City, to study the
insect and experiment with remedies.
The one year old apple trees standing
IN the nursery rows were found so
badly infested that they looked as if
fire had swept over them. Very few
leaves were exempt from the attack. In
many cases single cluster of unfold
ing leaves contained three or four
larv sc. These little worms attack the
bud just as it has begun to unfold it's
young leaves. One, two, three, or all
theleaves from bud are rolled together
and fastened by silken thread or web
wound around them, and inside of this
the worm feeds, grows, pupates and
comes forth a moth to lay eggs for an
other brood. The moths of the first
two broods are Of an orange color while
those Of third and last brood of the
season are ash gray. The larvae of the
first brood began to appear May 9Th,
and these developed into moths by May
14th. These began to lay eggs at once
and the second brood Matched out May
29d and were fully developed moths by
June 2ssh. The eggs deposited by this
second brood began to hatch July 10th
and were fully developed gray moths
by August Goth. The season was early
and the several broods are usually
about a month later than above noted,
in Missouri, and still later farther north
and earlier south Of that State.
AS soon as the young worms have
folded the young leaves about them,
they begin to feed upon the inUerior of
their cages and this causes the leaves
to turn brown and gives the appearance
of having been scorched by fire. Usually
a single leafis sufficient to feed worm
till it pupates and is transformed into
the moth stage.
The Leaf Crumpler is similar in habit
to the Folder, but attacks plum, cherry,
peach and ounce trees as well as apples
and wild crabs, and they appear some,
what later in the season and are single
brooded. The moth appears in June,
and the eggs hatch in about week
The moth is gray and nearly an inch
from tip to tip of wing; the larvae is a
brown worm with few scattered hairs.
1t draws the edges Of q leaf together
and fastens them with fine web and
lines this case with silken web. The
case is small at one end and large at
the other, like horn, and the worm
hides in this in day time and ventures
out to feed at night, on the tender leaves
and buds. At the approach Of cold
weather they fasten their case to limb
and hang in the pupa stage during
winter.
The old remedies against these in
sects, were to gather the cases Of the
Crumpler, during winter, and burn
them and destroy the first brood of the
Folder by squee zing their cases between
the thumb and finger and thus mash
the worms within.
But the experiments of the Missouri
Station at the nursery above mentioned
showed that spraying with poisoned
Bordeaux mixture is effective against
both. Spray thoroughly just as the
buds are ready to burst open, and
again after the blossoms fall, and you
will rid your trees of these insects and
of the codling moth and such fungus
diseases as apple scab, etc.
For sprayiug nursery stock, four
spraying nozzles we're arranged behind
a wagon SOFAS to spray four rows at
once. Drive slowly, and turn at the
end of rows and go back over the same
rows.
| APPLE GROWING IN NEW JERSEY.
This is the subject of bulletin 119, of
New Jersey Station. A statistical sur
vey was made of the State in 1895,
which showed that one tenth of the
farmers of that State are engaged in
fruit or berry culture on a commercial
scale, with an average Of over IL acres
each, and 70 out of every 100 growers
reported the business profitable.
The above statistics were procured
by a farm farm canvass, and this
bulletin was issued to give the most
commendable methods in growing and
marketing practiced by the most sue
canaf11I Of these nranfical farmera