10 
Sherman Nursery Company, Charles City, Iowa 
Spraying Calendar 
TROUBLE 
APPLE, PLUM, PEAR, CHERRY TREES 
WHEN TO TREAT WHAT TO USE AND HOW 
Oyster shell, scurfy and San Jose scale, 
peach leaf curl and plum pocket. 
Dormant —Where scale is bad apply spray in 
March or early April before growth starts. 
5 to 6 gallons lime sulphur with water to make 
50 gallons. Completely cover surface of 
bark. Use only 3 gallons lime sulphur to 50 
gallons for peach leaf curl or plum pocket. 
(1) Apple scab, pear scab, brown rot on 
plum, canker worm, curculio and green 
fruit worm. 
Cluster Bud —When blossom buds have sep¬ 
arated and before the individual blossoms 
have opened. 
5 to 6 quarts lime sulphur, 
li pounds lead arsenate. 
50 gallons water. 
(2) Codling moth, canker worm, curculio 
and apple scab. 
Petal Drop or Calyx —When 95 per cent of 
the petals have dropped from the blossoms. 
5 quarts lime sulphur. 
l£ pounds lead arsenate. 
50 gallons water. 
(3) Codling moth, apple scab, apple blotch 
and curculio. 
Side Worm Spray —Apply 10 to 14 days after 
the calyx spray. 
4£ quarts lime sulphur, 50 gallons water, 
or: 
Bordeaux Mixture 3-3-50, 3 pounds copper 
sulphate, 3 pounds quicklime, 50 gallons 
water. 
Use 1 pound lead arsenate with either. 
(4) Second brood codling moth, apple 
maggot, scab, sooty blotch and black 
rot. 
Fourth Spray —Apply .luly 20 to 30.. Spray 
only fall and winter varieties of apples. 
4 quarts lime sulphur. 
50 gallons water or Bordeaux Mixture 4-4-50. 
Use 1 pound lead arsenate with either. 
(5) Second brood codling moth. Sooty 
blotch. 
Fifth Spray —August 1 to 15 or about 2 to 3 
weeks after fourth spray. 
Same material as for fourth spray. Fungi¬ 
cide may be left out if diseases are not 
bad. 
NOTE—Where apple maggot is bad apply 
extra spray 2 weeks earlier than fourth 
spray, using same materials. 
Note —Where apple blotch is found, put on 
an additional spray 4 tc 5 weeks after the 
calyx spray. 
NOTE — Write the Horticultural Extension 
Service for information concerning other 
orchard troubles. 
GRAPES 
Anthracnose and black rot, grapeberry 
moth, grape-root worm, grape curculio 
and leaf-eating insects. 
1. A few days before blossoms open. 
2. After blooming when grapes are size of 
small shot. 
3. Two weeks after No. 2. 
4. Ten days or two weeks after No. 3. 
1. Spray with Bordeaux 4-4-50 formula. 
2. Spray as in No. 1 plus H pounds of lead 
arsenate for leaf eating insects 3 and 4. 
Same as No. 2. 
BLACK RASPBERRIES 
Anthracnose. 
1. Just before leaves appear. 
2. When new shoots appear. 
3. Just before blossoming. 
1. Spray with lime sulphur 2\ gallons to 50 
gallons of water. 
2. Spray with lime sulphur 5 quarts to 50 
gallons of water. 
3. Spray same as in No. 2. 
STRAWBERRIES 
Leaf Spot. 
1. When new growth starts in spring followed 
by two more applications at intervals of 
10 days or 2 weeks. 
Bordeaux Mixture 4-4-50. 
Leaf Roller. 
When insect first makes its appearance, fol¬ 
lowed by weekly applications until fruit is 
well formed. 
2 pounds lead arsenate. 
50 gallons water. 
CURRANTS AND GOOSEBERRIES 
Currant “worm.” 
When insect makes its appearance. 
3 ;.ablespoonfuls dry lead arsenate to each 
gallon of water. See also page 18. 
Aphis or plant lice. 
Insects will be found on under side of leaves. 
Nicotine sulphate, 2 teaspoonfuls to each gal¬ 
lon of water. 
GARDEN FLOWERS AND HOUSE PLANTS 
Aphis or plant lice on roses, nasturtiums, 
poppies and all other garden flowers, 
house plants and shrubs. 
As soon as the lice are discovered. 
Nicotine sulphate (commercial name, “Black 
Leaf 40”), 1 teaspoonful in 2 quarts of 
water. Dissolve about 1 cubic inch of soap 
in the water. 
Rose slug or worm. 
As soon as discovered. 
Spray with arsenate of lead, 1 ounce to a 
gallon of water. 
Rose leaf hopper. Whitish jumping in¬ 
sects which suck the juice from the 
plants. 
As soon as discovered. 
Treat as for aphis or lice. 
Red spider on hardy phlox. Tiny spider- 1 When leaves turn yellow, 
like insect on under side of leaves. 
Spray with soap and nicotine solution as for 
lice. Syringe foliage often with water dur¬ 
ing dry weather. 
Powdery mildew on the rose and other 
plants. 
When whitish powdery patches appear on leaves 
and young shoots. 
Dust the foliage with sulphur or spray with 
potassium sulphide, 1 ounce to 3 gallons 
of water. 
Scale and mealy bug on ferns, palms, and 
other house plants. 
As soon as discovered. 
Spray with any of the following: 
Lemon oil emulsion. 
Fir tree cil soap. 
Fish oil soap. 
Repeat in 10 days if necessary. 
