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Time Of Spraying

Fortunately it is not necessary to make a separate application for each insect and disease, but they may be treated together to some extent. In most cases expediency demands that the arsenicals be use...

Apple Growing November 11, 2026 3 min read 3,328 views



Fortunately it is not necessary to make a separate

application for each insect and disease, but they may be treated

together to some extent. In most cases expediency demands that the

arsenicals be used with the fungicides. Many growers are finding the

most satisfactory results, however, from applying the arsenical spray

separately, just after the blossoms fall, because of the physical

impossibility of properly applying the two sprays--the driving and the

mist spray--together. For most practical purposes on the general farm,

three sprayings are necessary in order to secure clean fruit and four,

sometimes five, are often advisable. These may be summarized as

follows:



1. With lime-sulphur, winter strength, on the dormant wood in

early spring.



2. With lime-sulphur and arsenate of lead just before the

blossoms open (may sometimes be omitted).



3. With the same (or Bordeaux for scab) just after the blossoms

fall.



4. With the same two or three weeks later.



5. With arsenate of lead eight or nine weeks later (may

sometimes be omitted).



(In the south and middle latitudes where bitter rot and apple

blotch occur two other sprayings may be necessary.)



6. With Bordeaux about eight or ten weeks after the blossoms fall.



7. Again with the same about two weeks later.





A Calendar for Spraying Apples



--------+--------+--------+--------+--------+-------+---------+----------

INSECTS Nature Before Before After In 2 In 8 Materials

of Leaf Flower Petals to 3 to 9 to

Injury Buds Buds Fall Weeks Weeks Use

Open Open

--------+--------+--------+--------+--------+-------+---------+----------

Codling Eating x x x Lead

Moth Worm Arsenate

or

Par. Gr.

--------+--------+--------+--------+--------+-------+---------+----------

San JoseSucking x Lime

Scale Insect Sulphur

--------+--------+--------+--------+--------+-------+---------+----------

Oyster Sucking x Lime

Shell Insect Sulphur

Scale

--------+--------+--------+--------+--------+-------+---------+----------

Blister Leaf x Lime

Mite Miner Sulphur

--------+--------+--------+--------+--------+-------+---------+----------

Plant Sucking when seen Whale Oil

Louse Insect Soap or

Tobacco

--------+--------+--------+--------+--------+-------+---------+----------

Cigar Eating x x x Lead

Case Insect Arsenate

Bearer or

Par. Gr.

--------+--------+--------+--------+--------+-------+---------+----------

Apple Eating x x destroy fruit Lead

Maggot Worm Arsenate

or

Par. Gr.

--------+--------+--------+--------+--------+-------+---------+----------

Bud Eating x x x Lead

Moth Worm Arsenate

or

Par. Gr.

--------+--------+--------+--------+--------+-------+---------+----------

Curculio Eating x x Lead

Worm & Arsenate

Beetle or Par. Gr.

--------+--------+--------+--------+--------+-------+---------+----------

=Diseases=

--------+--------+--------+--------+--------+-------+---------+----------

Apple Fungus x x x x if Lime

Scab necessary Sulphur

or

Bordeaux

3-3.50

--------+--------+--------+--------+--------+-------+---------+----------



New York Fungus x? cut out Lime

Apple infections Sulphur

Tree

Canker

--------+--------+--------+--------+--------+-------+---------+----------

Leaf Fungus x x x Lime

Spot Sulphur

--------+--------+--------+--------+--------+-------+---------+----------

Sooty x x x Bordeaux

Blotch Mixture

and Lime

Sulphur

--------+--------+--------+--------+--------+-------+---------+----------










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