The Filer record. (Filer, Idaho) 1919-1930, 1920-05-27
Time OF Application

ntoNcOAHa ~
first and most important spray OF
entire year Tor the coddling moth Is
known as the "calyx spray" and
must be given during the time after
the majority OF the petals have fall
lras aAu Oe4ore the calyx loDes close.
II is only at this time that the poi
son can be placed IN the calyx cup
where IL has roVen to be so highly
essential. due TO the fact that ma
ority ~ the worms attempt to en-
ter at this point.
zach grower will necessarily use
his own Judgment in regard 20 the
beginning of his spraying, depend
ing upon the size OF the orchard. la
Dor. machinery. etc. but bearing in
mind the essential fact the spraying
must be finished before the calyx
close. Ordinarily the time ia winch
this application can be made does
not exceed 10 days and less in
certain varieties II the weather is es-
pecially warm.
Due TO the peculiar habit OF the
Rome variety in issuing its blossoms
il is advisable TO make two ealyx
sprays for this variety IL the fruit
growers will delay spraying until
most the petals have fallen and the
bees have quit working, the danger
a.. alsebatt OF loau IoisCAing OF
bees will be largely avoided. II the
spray is applied too early while the
stanens and anthers are still fresa
and the petals not sufficiently fallen
Il is very difficult TO reach properly
the caiyx cup with the spray.
spray Material
Arsapata ~ lead I'm either DaSfp %. !,
powder form is the standard ma
teriaI for the control OF the codlins
moth / pound powder or lbs.
of paste TO so gallons OF water Is
recommended. ms figures lbs.
Of powder or lbs. OF paste 10 "A
200 gallon tank. Practically all
brands OF arsenate of lead are good
and must meet the requirements OF
the federal ineecticide laws.
flower, Step-i adder on Saw horse
Necessary
Due TO the Iact tD., a large per
centage OF the blossoms extend up
ward at this time IL is necessary
that one sprays from an elevation
above the trees which VIII enable
aim To spray downward and reach
the calyx cups in the blossoms which
extend upward and cannot be prop
erly sprayed from the ground. A
tall sawhorse with a platform built
upon il upon which TO stand is Co
pecially recommended although 4
good step-ladder, or tower securely
fastened on the spray machine are
desirable. Many growers in ldafo
fail to provide this essential factor
OF their equipment for cooling moth
control. Do not depend on ia 2
spray gun to do the work that can
only be done to best advantage FROM
a high position.
Spray With a High Pressure
Ins Saiyx spray requires high
pressure, as the object is TO place
the poison In the calyx cup In addi-
ION TO covering the foliage and sur
face Of the tree. Other sprays dur
ing the remainder of the year are
commonly known as cover sprays
and do not require so high pressure
although a good pressure Is recon-
mended at all times. a machine
tnat gives a pressure less than zoo
,,uunus Is not desirable and an aver
age pressure OF 275 pounds Is rec
commended. For efficiency the
pressure must be kept constant.
lme spray gun and spray rod are
Doth good. me efficiency in either
case depends largely upon the man
operating the same. When the
spray rod Is used the clipper nozzle
is recommended.
Thoroughness
Having the proper equipment.
spray material. and making tbs APP
plication before the calyx close, poor
results may still be expected unless
thoroughness of application Is ever
constant in the mind OF the oper-
ator. Unless the poison reaches the
calyx cup in sufficient quantity aud
uniform distribution OF the lead l.
secured over the entire crop unsats-
factory results may be e1pectct.
Vari Gus brands OF spray material.
spray machinery, weather anu otnef
factors have been accuser for wormy
appies wnen thoroughness OF appll-
cation has been the real cause or
wormy fruit.
Inspectors OF the Bureau OF
Plant Industry. State Department OF
Agriculture, this year are prOfided
with equipment for determining the
proper spray dates throughout the
season, By studying the activity OF
the cooling moth in their respective
sections. These dates Will be. given
out through the press By edcn ins-
pector for his district
The calyx spray is determined
however. by weather conditions
which affects the time of blossoming,
anu lhus the first and most impo.-
sant cooling moth spray a. naturally