The Kennewick courier-reporter. [volume] (Kennewick, Wash.) 1914-1938, 1930-05-01
SUGGESTIONS MADE FOR
MOTH CONTROL


ings held Saturday of last week
and the first three days days OF
this week, is as follows:
Application of the calyx in al
cases. In the main, of course, this
application has been made previous
to these meetings.
Use of at least five moth traps
to the first ten acres with addi-
tional traps used in larger orch
ards to determine actual situation
as far as moth flight is concerned
in various parts of the orchard
and the orchard as a whole. Traps
should be checked daily and this
check continued throughout the
season. According to Mr.. Starcher,
their work has shown that Dismalt
diluted with nineteen parts Of wa
ter to one of Dismalt has given
best results. Cider or molasses may
be used. The information gained
from these traps by each individual
grower should he checked against
information put out by the Horti-
culture Department covering three
to four orchards in the community.
Information gained from the use of
traps should be preliminary to ex-
animation of the orchard for eggs
of the moth. And the application of
the spray based upon the finding
and condition of the eggs. During
the first two cover sprays when
eggs are laid in the upper parts of
the trees and upon leaves it is al
most impossible to locate them,
hence sprays should he put. on
closely following the calyx spray.
Recommendations by Mr.. Beaver
were to the effect that these three
sprays, the calyx and the first two
covers, should be applied within a
twenty-day period and this is in
keeping with recommendations of
the Extension Service and the Hor-
ticulture Department made last
winter. b 3. ...-
The use of the. summer oil as a
means of moth control for destruc-
ton of eggs is highly recommend
ed. The time at which the oil should
be used will be determined by the
heavy moth flight followed by To-
cation of freshly laid eggs upon
the fruit. Meetings are going to be
held later under the supervision Of
the Big Y organization to which
all growers are invited, at which
Mr.. Beaver will point out eggs to
those present so that they may he
able to identify them and be bet
ter enabled to develop good spray
program at their own orchards. In
the main, we are holding to recon-
mendations that not more than
three oil sprays be used during the
season but it may be necessary to
use more, under special conditions,
and this has been done in the past
without apparent damage provid-
ing one does not use an oil which
lis heavier than is recommended.
Discussion conferred around the
control of the worm largely by
control of the first brood. Norman
Anglin of Hanford mentioned sew
era1 growers of the White Bluffs
and the Hanford communities who,
during the season of 1928, had had
some 20 percent to SO percent culls
due to worms, who had been able
to control the situation last season
TO the point that their loss was
from a to 10 percent. Mr.. Anglin
stressed particularly in his discus
sion of more efficient operation OF
spray machines the application OF
plenty of spray and the operation
of the machine to secure some
where's near the rated capacity oil
the machine. He mentioned severa
growers who were putting on what
several of the men present though
was almost impossible; one mar
with a thirty-gallon machine o:
300 gallon capacity put on 25 tanks
a day with the help of two men
Another man worked alone, VIII,
with II gallons per minute and 20
gallon capacity, had put on Is t.
16 tanks per day. The question
came up as to the efficiency o
such rapid spraying, which I'm
doubtedly does mean the wastin
of some material. However, thi
question is simply one of balane
ing cost of labor against cost q
material and if less is lost frol
extra material wasted than
saved by the least time given to tn
spray work then this would be ju.
titled. These men spraying at tt
above rates have been able to col
troll worm infestation to a high d.
gree of efficiency and largely TIN
a spray program during the fir
period.
It would seem with examples L,
good control secured last year
individuals throughout the count
in orchards where loss has bee
heavy the proceeding year and Wi
the new information made avai
able this year. The program r
r,,;rod FOR success depends large