The Canon City record with which is consolidated the Canon City cannon., 1912-08-22
FINDS Kennedy FOR
~LEAR ROLLER"

within a few days in a special bulletin
issued By the state. the discovery nf
an effective remedy and preventative
Of the leaf roller" q pest which ac-
cording to estimates Of horticulturists,
has destroyed In Pueblo county for the
past several years an average Of $780,
900 each year In fruit. and whose raw
ages in the orchards OF the state have
caused the fruit growers enormous
losses annually.
County Horticulturist J. n. salter
received a letter from Prof. Weldon
this morning giving some short de-
tails In regard To the new remedy and
resuIts produced in the Canon City
fruit district where Prof Weldon has
been wofksss for more than a year at
the expense 81 the state. u
Prof Weldon - eosssdered to be
very conservative by s6fticulturaiists
and although he discovered the leaf
roller remedy more than a yesf ago.
he refused to make public annosxice-
ment Of his discoveries until he had
thoroughly tested IT In Fremont coun.
~ orchards. After extensive expert
ments extending over a year he has
prepared a bulletin explaining the
remedy and its use so that any fruit
grower can apply i:. The bulletin Is
now in the hands Of the printer and
will be ready for distribution next
week. County Horticulturist J. y. Sal
ter Will see that 4 copy Of the bull
letin is placed In the hands OF every
fruit grower in Pueblo county where
the leaf roller for the past many sea-
sons has been particularly destructive.
Like many other important dIscov-
cries the remedy for the leaf roller Is
simple II consists in the application
by spraying OF a spray Consisting OF a
mixture OF scaie-side and oil The
scaie-side Is In common use among
fruit growers and Is effective againr,
San Jose scale II was tired on the
leaf roller but without any good -e-
suits.
The leaf roller lays an egg or set
OF eggs which can be plainly seen
ciinging to the limbs and body OF the
fruit trees. The eggs are covered with /
n hard coating or shell which the
scale aide did not penetrate. A mix
ture OF oil and scaIe-slde was tried 1
and y has been proven that the oil
softens the coating or she'll OF the i
eggs and allows the scale-side TO pen
citrate. killing the life germ in the egg
and preventing Matching.
The remedy must be applied In the
winter time when the limbs are bare
OF foliage and the eggs OF the leaf
roller can be easily reached by :he
spray. Last winter Prof Weldon car
ried on experiments with Che scale
side and also with the new remedy Of 1
and oil and his experiments
have conclusiveiy shown that the new
remedy totally destroyed all eggs Of
the leaf roller.
His experiments have resulted in ab- |
soluteiy riddlng the orchards tried Of
the leaf roller while adjoining ORCH
ards not sprayed are producing no
fruit whatever. The leaf roller us
ually confines its ravaEes to apple
trees but last year II attacked cherry
trees and was also found this winter
on cottonwood trees indicating ats
ability TO develop on any sort OF tree.
II feeds on the young fruit.
It Is estimated that 500 acres OF
fruit in Pueblo county suffered a total
loss OF fruit crop last year due to the
leaf roller. Next year BY use Of the
new spray II Is believed there will
be not the slightest loss IL the farmers
tAh be induced 10 usS the spray this