xt7msb3wvf15 https://exploreuk.uky.edu/dips/xt7msb3wvf15/data/mets.xml   Kentucky Agricultural Experiment Station. 1925 journals kaes_circulars_001_3_176 English Lexington : The Service, 1913-1958. Contact the Special Collections Research Center for information regarding rights and use of this collection. Kentucky Agricultural Experiment Station Circular (Kentucky Agricultural Experiment Station) n. 176 text Circular (Kentucky Agricultural Experiment Station) n. 176 1925 2014 true xt7msb3wvf15 section xt7msb3wvf15   -·  .;,   .T.-   A ,
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  UNIV ERSI I Y OF KEN I UCKY
  COLLEGE or Aomcumruniz
  Extension Division
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  Y THOMAS P. COOPER D d D` ` ’ J _ ~ .
  » ea" an '”°}"§t°5`I:@ En.:ir:i&;:;:z Bag?.
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  _ SPRAYING FRUIT IN KENTUCKY ,»
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· eg January, 1925.
Y1 Puhliaeiied in cmiiirwtioii with thc agricultural extension work carried
mi by cooperation of the Colloyo of Agriculture, Ihiivcrsity of Kentucky,
with the U. S. Department of J\§',l’IClIItI.1I`C, und distributed in furthcrzmce
of the work provided for in the Act of C»»n;·ross of May 8, 1914.

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g     EXT. c,1v,\·‘\l»-'>°°
I A V i   i E
* i?  ° EXTENSION CIRCULAR NO. 176 ‘
  _‘f , -»V» q.   .   Spraying Fruit in Kentucky
l-1*jQ {"‘"“g;{ —   By THE HORTICULTURE DEPARTMENT ·
2 T i E9 .i- ‘
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2 — _i l Successful orchardists now consider an efficient spray
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{ », Q     program a necessity. All sprays should be applied in a syste- , E
  ` .     matic manner. For successful results it is necessary to (1)  
  .4   ·‘     use the correct material, (2) apply at the proper time and (3)
EV   i · fff; apply very thoroly. O
    The spray schedules in this publication are arranged to
» —. J c 1`l |’  · · · ·
5   ‘_g,j`3 lj;. meet average conditions. For the best results in commercial
      orchards, it is often desirable to make more frequent applica-
? p     Fijie tions than are recommended in these pages.
  y_.·   `‘_·-i ·     Many commercial orchards have suffered in recent years
I J - · I   ,
g "  _. ;§  · from ban Jose scale, and growers have been eager to learn
    4 ei}-  Y   ” of spray materials which would have greater killing efficiency
— ». · —--e iw » . . .
I Tjj`-     .- than the ordinary lnne—sulfur solution.
    iii:   _ gi-_ Some have used for this purpose the oil preparations known
  as "miscible oils" successfully. Others have used effectively
l   `[f;f»~=    the lubricating oil emulsion known as government oil emulsion,
-     — ‘·e—   . . . . .
  ~’`_   [Ei. Q   which is on sale by dealers in most commercial apple growing (
    ` _‘·V··`, 1 '.-·_ Q _Z  districts in prepared form ready for dilution. Oil emulsions
  _ should be freshly prepared each season, and should not be al-
Q J.£§Q;._  lowed to freeze as this may cause a separation of the oil, and
1. `igf       result in injury to the trees. These sprays should be applied `
    %.·z§‘*   on clear mild days with tem eratures above 40 degrees Fahren-
, ».;. - V. - in - P O
   i * i   heit, when there is no danger of freezing temperatures for several
ii   Ytifiii i`‘- P  ii: hours following
    2 z?:,_;` -.·* 5 g ` _
  ·.,_     In orchards practically free from scale, and particularly
  ’r*»   for peach orchards, the standard liquid lime-sulfur can be
   I       recommended. -
  .».· Q  
  NOTE: Acknowledgments are due to the State Horticultural
  Society, commercial growers thruout the state, the plant pathologist
i;   and entomologist ot the Kentucky Agricultural Experiment Station
   jx and others for their valuable suggestions in preparing this circular.
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€_   G Kentucky E.rtclnsz`0n C‘Z·7'Cll·Z(l)‘ N0. 176
    solution with 8 or 10 gals: of water and add it to the lime water, .
i l   stirring well as this is done, Hnally adding water sufficient to make V
    50 gals. in all. Apply at once. If good stone lime is not available, box.
    substitute 6 lbs. of a good grade of hydrated lime in the above formula. mg
{ `‘»·   ` ?` If much spraying is to be done, it is often more convenient to `
  _   make up in advance separate stock solutions of both bluestone and mix
Q] ~`   lime at the rate of one pound to each gallon of water. If these stock sti;]
    solutions are kept covered to prevent evaporation, they can be kept cmu
i§ j [ for weeks ready for quick dilution and mixfng as needed.
    Bordeaux mixture should always be used when fresh. ’ Sum
'-    1,; sulfi
    SPRAY SCHEDULE FOR PEARS. ‘ wate
  Use apple sprays No. 1, 2, 3, and 5.
< g   sam·
  i`  SPRAY SCHEDULE FOR SOUR CHERRIES.
  ‘ Use apple sprays No. 1, 2, and 3_
   fla? Norss.
`°¥  1. Scale insects seldom attack sour cherries and if none are
  `E present, spray No. 1 may be omitted.
    2. If serious infestation of leaf spot occurs, it may be controlled
tf;) by applying apple sprays No. 4, 5 and 6, using Bordeaux but omit-
    ting the arsenate of lead.
. K .5:
  SPRAY SCHEDULE FOR PLUMS.
  Use same schedule as for peaches, with the addition of one im- ‘
FYI, ifi; portant spray applied as soon as blossoms fall, using same solution
  as peach spray N0. 2.
‘   it mores.
  1. Dry lime-sulfur, liquid lime-sulfur, or Bordeaux should NEVER
  be applied to the peach orchard during the summer.
t   2. For spray No. 2 some growers add the fungicide to the solu-
  \gF$ tion, for additional control of brown rot.
  3. On account of not being able to purchase a high grade of
  active lump lime for making self-boiled lime»sulfur, the “dry mix _
    sulfur lime" is being much used. This can be prepared at home or
  purchased from commercial firms. It is made from 8 lbs. sulfur, 4
  lbs. hydrated lime, and le lb. calcium caseinate (frequently sold under
  such trade names as Kayso, Spreado, etc.) This is thoroly mixed in
    the dry form, and used at the rate of 12% lbs. to 50 gals. of water.
  First add a small quantity of water gradually to the powder while
  stirring, until it becomes a paste, then dilute to make 50 gals. of
  spray mixture.
Vt
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4. Preparation of SELILBOLED LIMESULFUR S-8-50.
Slake 8 lbs. of the best stone or lump lime in a barrel or tight _
box. Use hot water when available, but only enough to start slak-
ing.
When slaking begins add 8 lbs. of iiowers of sulfur (previously
mixed to a paste with a small quantity of water) to the slaking lime, .
stirring constantly. Continue to add water in small quantities, suffi-
cient to keep the lime in a soft, pasty condition.
As soon as the slaking is over (usually within 15 minutes) add
sufficient cold water to cool the mixture and stop the cooking of the
sulfur. Stir vigorously and strain into spray barrel or tank, adding
water to make 50 gals. of spray material.
If required, larger quantities may be made up at one time in the
same proportion, as 32-32-200.

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