76 
THE CHASE NURSERIES, GENEVA, NEW YORK 
SPRAYING 
All authorities now recognize the importance of properly spraying to protect from the ravages 
of insects. The time to spray is when the operation is needed to protect the plant. This will vary 
therefore with every season and different pests. 
The following directions should be followed as closely as possible, as they have been formulated 
after much experience. Never spray fruits when in bloom. 
PLANT 
Apple 
Scab codlin moth, 
bud moth. 
Cherry 
Rot, aphis, slug. 
Currant 
Mildew, worms. 
Gooseberry 
Mildew, worms. 
Grape 
Fungus diseases 
and flea beetle. 
Peach 
Nectarine 
Apricot 
Brown rot. 
Pear 
Leaf-blight, scab, 
psylla, codlin moth. 
Plum 
Fungus diseases, 
curculio. 
Quince 
Leaf and fruit 
spot. 
Raspberry 
Blackberry 
Dewberry 
Athracnose rust. 
Rose 
Mildew, black 
spot, red spider 
aphis. 
First Application 
When buds are 
swelling, Bordeaux, 
copper sulphate so- 
lution and arsenites 
As buds are break 
i n g , B o r d e a u .X. 
When aphis appears 
kerosene emulsion. 
At the first sign 
of worms, arsenites 
or Bordeau.x. 
When the leaves 
expand, Bordeau.x; 
and for worms, as 
above. 
In spring, when 
buds swell, copper 
sulphate solution. 
Paris green for flea 
beetle. 
Before buds swell, 
copper sulphate so- 
lution. 
As buds are swell- 
ing, copper sulphate 
solution or Bor 
deaux. 
During first warm 
days of early spring 
Bordeaux for black 
knot. When leaves 
are off in the fall, 
Kerosene emulsion 
for plum scale. 
When the blossom 
buds appear, Bor- 
deaux. 
Before buds break 
copper sulphate so 
lution, Bo r d c a u X . 
Cut out badly dis- 
eased canes. 
For mildew, thor- 
oughly stir the soil, 
encourage growth, 
is best thing that 
can be done. 
Second Application 
Third Application 
Just before blos- 
soms open, Bor- 
deaux. For bud- 
moth, arsenites 
when leaf-buds open 
When fruit has 
set, Bordeaux. If 
slugs appear. Helle- 
bore. 
Ten days later. 
Hellebore. If the 
leaves mildew, Bor- 
deaux. 
Ten to 14 days 
later, Bordeaux. 
For worms, as above 
When leaves are i 
to inches in di- 
ameter, Bordeaux; 
Paris green for lar- 
vie of flea beetle. 
Before the flowers 
open, Bordeaux. 
Just before blos- 
soms open, Bor- 
deaux; kerosene 
emulsion when the 
leaves open for 
psylla. 
When buds are 
swelling, Bordeaux 
for black knot and 
other fungus dis- 
eases. During mid- 
winter, kerosene 
emulsion for plum 
scale. 
When fruit has 
set, Bordeaux and 
arsenites. 
During summer, 
if rust appears on 
the leaves, Bor- 
deaux. 
For black spot, 
spray plants once a 
week with ammon- 
iacal copper carbon- 
ate, using fine spray 
Fourth Application 
When blossoms 
have fallen, Bor- 
deaux and arsenites 
Ten to 14 days if 
rot appears, am- 
moniacal copper 
carbonate. 
If worms persist. 
Hellebore. 
Ten to 14 days 
later, ammoniacal 
copper carbonate. 
For worms as above. 
When the flowers 
have fallen, Bor- 
deaux; Paris green, 
as before. 
When fruit has 
set, repeat first. 
After the blossoms 
have fallen, Bor- 
deaux and arsen- 
ites, kerosene emul- 
sion if necessary. 
When blossoms 
have fallen, Bor- 
deaux; begin to jar 
trees for curculio be- 
fore buds start in 
sprint;; kerosene 
emulsion for plum 
scale. 
Ten to 20 days 
later, Bordeaux. 
Repeat second if 
necessary. 
For red spider, 
spray plants twice 
a week with kero- 
osene emulsion. Ap- 
ply to under side of 
foliage. 
Ten to 14 days 
later, Bordeaux 
and arsenites. 
Ten to 14 days 
later, ammoniacal 
copper carbonate. 
After fruit is har- 
vested, apply Bor- 
deaux freely. 
Ten to 14 days 
later, repeat third. 
Ten to 14 days 
later, Bordeaux. 
Ten to 14 days 
later, repeat. 
Eight to 12 days 
later, repeat third. 
Ten to 14 days 
later, Bordeaux; 
jar trees for cur- 
culio every two to 
four days. 
Ten to 20 days 
later, Bordeaux. 
Orange or red 
rust is treated best 
by destroying en- 
tirely the affected 
olants. 
For aphis, spray 
affected parts with 
kerosene emulsion 
when necessary. 
San Jose Scale. Lime, Sulphur and Salt solution applied in early part of March, also kerosene emul- 
sion when young appear in spring and summer. 
