The Kennewick courier-reporter. [volume] (Kennewick, Wash.) 1914-1938, 1921-06-09
- Field and
S$ Orch ard
Spreaders for Hay

During the past few years consid-
cradle experimentation has been car
ried on in an effort to make arsenate
of lead spray spread and adhere more
evenly to the surface Of apples and
pears. The materials used for this
purpose are called spreaders.
Although lead manufacturers and
government investigators are not yet
entirely agreed on the merits Of the
spreaders, it has been demonstrated
that spreader will improve the eff
| ficiency of the lead spray, especially
| in the hands of an unskillful nozzle
| man.
1t is suggested to those who have
had difficulty in worm control in the
past years. that spreader be used.
Among the materials which have been
used with more or less success are
soap, glue and different kinds of
paste. There are several brands of
glue and paste on the market espec-
tally prepared for spreader use.
A very satisfactory spreader is
known as casein spreader and is pre-
pared as follows:
1 pound of powdered casein, 2
ounces of common lye, gallon of
water.
Bring the water to boiling point,
then add the lye and stir the casein
in slowly. Stir until dissolved. Use
one quart of this solution to each 200
gallon tank of spray
Casein is milk product and will
keep in solution for a very long per-
iod. A fresh solution should be
cooked for each spray period.
Prepared casein spreaders in both
liquid and dry form are now on the
market. These are made from casein
by formula similar to that given
above.
Cover Sprays for Arsenate of Lead
The first cover spray of arsenate
of lead was applied to the apples in
Benton County during the last of May
and the first days of June. In order to
get the most effective control of the
worms it is desirable to destroy all
of the first brood, the brood which is
emerging now. Every worm destroyed
as it attempts to enter the apple in
early summer means fifty less worms
to fight later in the season.
For this end the horticultural de-
partment recommends that the Sec
ond cover spray of lead arsenate fol-
low first cover spray at an interval
of twelve to fifteen days, thereby in
surfing as perfect covering of poison
as is possible during the period when
the first brood of worms is emerging
and when the young apple is doubling
it's surface area most rapidly.
The third cover spray and all later
sprays should follow at eighteen to
twenty-one day intervals. The horti-
cultural department will watch the
progress of the second brood OF
worms and the first of the second
brood, growers will be notified of this
break so that they can take advan-
tage of the fact and delay the third
cover spray. However, no interval OF
consequence is anticipated between
the broods and unless advised to the
contrary, the third and all succeeding
cover sprays should be applied at
eighteen to twenty-one day intervals.
1t is probable that spraying inten-
sively for the first brood of worms
which are emerging now will give such
satisfactory control as to allow the
grower to slacken his spraying sched-
ule toward the close of the season.
Use four pounds of arsenate of lead
powder to two hundred gallons of
water: use high pressure and cover
all part of the tree where there is any
fruit or possibility of fruit being pres
ent.' IKE
D.rreddS is..er etaoin sharoi ldnnun
Orchards which are not being prop
erly sprayed for coddling moth con-
troll should be reported to the horticul-
tural inspector. 1t is the plan of the
horticultural department to carry out
compulsory spraying for the coddling
moth in neglected orchards just as has
been done for San Jose scale in the
past. Information conveyed by letter
to the undersigned will be treated
confidentially and will be given the
most prompt attention possible.
T. E. BAILEY,