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Wisconsin State Horticultural Society / Annual report of the Wisconsin State Horticultural Society for the year 1910
Volume XL, Part II (1910)

Milward, J. G.
Spraying the farm orchard,   pp. 36-42 PDF (1.8 MB)


Page 37


37
SUMMER MEETING.
Cost of spraying per acre, five applications ....................  8.83
Inve8tment in Machinery:
Large size barrel pump ..........................       $18.00
30 feet, Y2" extra heavy hose ...........................   6.00
1 triple Vermorel nozzle ...........................     2.00
1 extension rod, 10 ft. bamboo ...........................   1.50
Total ........................... $27.50
Note. A reasonable discount on the above may be had from most
firms on a full order.
Utensils. Most fruit growers begin work with too few utensils
for mixing. Where barrels are used, at least five should be
available with a capacity of 50 gallons each. Stock solutions of
both blue vitrol and lime should be prepared as directed, and
three barrels should be used for mixing purposes. Provide either
a burlap or brass strainer and two cheap, ten-quart mixing pails.
Where access to water flow through pipes is available, this
system of mixing could of course, be extended to larger tanks,
and the gravity system of filling used as a substitute for the
dipping process. However, these methods apply more to com-
mercial orchard spraying. Easy access to a good water supply
reduces the labor of mixing.
Mixing Details. Where 500 gallons of spray mixture is re-
quired for an application prepare as follows:
The day before spraying suspend forty pounds of blue vitrol
in forty gallons of water. Hang the sack of blue vitrol high
up in the water or it will not dissolve. This makes blue vitrol
stock solution, one gallon of which equals one pound of blue
vitrol as per formula.
Slake fifty pounds of fresh stone lime in another barrel tak-
ing care not to "burn" or "drown" the lime. Let stand
as
thick hot lime for one hour, stirring occasionally. Dilute to
one-half barrel. This makes lime stock solution, one gallon of
which equals two pounds of lime in the formula
To make 100 gallons of Bordeaux mixture as per formula
given above pour eight gallons of blue vitrol in one 50 gallon
barrel and fill with water. Pour five gallons of lime stock solu-
tion in another 50 gallon barrel and fill with water. Strain at
the same time equal amounts of these two solutions through a
burlap sack, into a clean barrel. This makes the Bordeaux
mixture. The mixture may then be poured directly into the
spray tank.


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