Identifier: suggestionsforsp133rums (find matches)
Title: Suggestions for spraying
Year: 1911 (1910s)
Authors: Rumsey, W. E. (William Earl), d. 1938.
Subjects: Spraying and dusting in agriculture - West Virginia.
Publisher: West Virginia University. Agricultural Experiment Station
Contributing Library: West Virginia University Libraries
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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ly washed off by showers. Caution: As most spray materials are either poisonous or-have strong caustic properties they should be properly labelledand kept out of reach of children and stock. Fungicides Formula No i.—Borde-\ux ^Mixture. Copper sulphate (Blue stone or blue vitriol) 3 pounds. Stone lime (unslaked 3 or 5 A\ater 50 gallons Use only lump lime as freshly burned as possible. Airslaked lime should not be used. The copper sulphate will cor-rode iron or tin. Dissolve in a wooden or stone vessel. Formaking a barrel (or less) of the material, dissolve the copper sul-phate in a pail of hot water, pour into the spray tank and diluteto about 40 gallons. Slake the lime by the addition of the required amount of water and when slaked dilute to about five gal-lons of water. Pour the milk of lime thus made into the coppersulphate solution in the barrel, passing it through a strainer ofbrass or cheese cloth. Stir while adding the lime and add waterto make 50 gallons of spray material. 18
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If much spraying is to be done with Bordeaux it is desirableto have a mixing plant. This consists of a platform of suchheight that its bottom shall be a little above the opening Intothe spray tank. On the platform may be placed two 50 gallonbarrels to hold stock solutions, one of copper sulphate and one oflime. The former is made by suspending 50 pounds of coppersulphate in a burlap sack in the top of barrel filled with water.This may be done at night and it will be all dissolved in the morn-ing. The latter is made by slaking 50 pounds of lime in the bar-rel and when slaking is completed filling the barrel with water.One gallon of the contents of each barrel, when well stirred willcontain one pound of the material in the formula. The platformalso supports two other (dilution) receptacles whose added vol-\ume equals the capacity of the spray tank. To fill the spray tankthe required number of gallons is taken from the copper sulphatestock solution and placed in one of the dilution barre

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