The Lynden tribune. [volume] (Lynden, Wash.) 1908-current, 1920-03-04
URGES LYNDEN FARMERS TO
SPRAY THEIR ORCHARDS NOW

"Orchardist. spray your orchard!'
That is the advice which l.. O..
Calhoun, deputy horticulturist for
Whatcom county, is urging upon the
public now. He was appointed about
two weeks ago, and has made in
spections Of orchards in various dis
tricts of this county. He said that
the time to spray all fruits for the
main spring spraying is when the
apple bud shows pink.
There is a green sheath on the
bud" he pointed out. that curls
back and the pink Of the bud shows.
Then is the time to spray. Thor
oughness in spraying has proved to
be the most important factor in at
tanning success. And there are some
points that must be watched closely.
Contact insectides must wet every
insect and stomach poisons must wet
every branch, twig, and fruit
Pest and Sprays
The horticulturist has supplied the
following list of moths and worms
that do damage to fruit. and the best
destructive treatment for each. These
statements are accompanied by spe-
cific dates as to when the spray should
be administered. The list follows:
COOLING MOTH Do not use
spray gun for calyx spray unless
from the top of a tower. Thin fruit
and destroy wormy apples. The
spray: Lead arsenate, l pound pow
der of 2 pounds paste in SO gallons
of water. Use when petals are fall
ing. Then keep fruit and foliage
covered with the poison by spraying
badly infested orchards every 8 to
81 days.
BUD MOTH, CANKER-WORM -
any leaf-eating insect - Lead arse
nate. same as in foregoing paragraph.
Use when insects are discovered.
APHIS - Green, purple, cherry,
peach. woolly) - Release lady bug
beetles, if supply is available, only
when aphis are present. Always use
high pressure when spraying. Use
black leaf, 40, using l " pints and
4 pounds of soap in 200 gallons of
water. Aerial form. root form, 3
gallons distillate oil or black leaf
40, / pint 100 gallons water. to
s pounds soap, apply to exposed
roots. The time, as soon as dis
covered. In the spring band trees
with tanglefoot.
SCALE (San Jose, oyster shell,
any other) Miscible Oil better for
heavy infestation. Consult inspec-
tor. Use lime sulfur solution, l part
to 8 parts water, equal to degrees
baume or miscible oil. In using the
oil, consult the inspector. Use while
trees are dormant.
SCAB (Apple, pearl - Use lime
and sulfur soution. At first l part
to rs parts of water; second, l part
to 80 parts water; later, part to 30
35 parts of water. Can be combined
spray. Use first when bud clusters
with lead arsenate. Calyx and later
begin to show pink; second when pet
ais begin to fall; at intervals of 10
days, depending on weather.
BLISTER MITE (peach leaf
curl, peach twig borer) - Lime sui
fur solution, l part to 10 parts wa
ter. Use in spring before buds
start.
POWDERY MILDEW. (Anthrac-
nose - black spot canker - Consult
the district horticultural inspector
Might use bordeaux mixture imme-
diately after fruit is picked.
FIRE BLIGHT - Always disinfect
pruning wounds, using 1 gram cy-
anide of mercury to 500 grams OF wa
ter. No spray is effective. Remove
holdover cankers and diseased wood.
Cut IS inches below infection. Burn
Immediately.
Lime sulfur dilutions are based
upon 80 degrees baume test Prune
thoroughly but carefully. The best
spray outfits should be used AL
WAYS use 200 to 500 pounds pres
sure. Mr.. Calhoun said that for fur
Their information he may be consult