New YorK AGRICULTURAL EXPERIMENT STATION. 189 
to make too light applications. Many fail because they are too 
saving of time and material.” 
THE KIND OF SPRAYER TO USE.*5 
“The kind of sprayer to use depends chiefly upon the area to 
be sprayed. For gardens and fields of one acre or less, cont- 
pressed-air sprayers holding three to five gallons and costing from 
three to eight dollars answer very well. There are also bucket 
pumps which may be had for the same price and which are quite 
satisfactory. Likewise the knapsack sprayers to be carried on 
the back are useful for small areas, but they cost $10 to $15. One 
of these small hand sprayers is very generally useful about the 
garden and grounds for applying insecticides and fungicides to 
small trees and shrubs as well as to potatoes and other vegetables. 
“ When it is desired to use the same outfit for spraying in the 
potato field and in the orchard, a barrel spray-pump outfit (cost 
$10 to $20) is the proper thing to use. In the potato field this 
outfit may be used in two ways: First, it may be drawn through 
the field in a light wagon or two-wheeled cart, with a man to 
pump and drive while two others walk and direct the spray 
nozzles. This method requires much man labor and is there- 
fore expensive, but no extra outlay for apparatus is necessary 
and the spraying can be done more thoroughly than by any other 
method practical in large fields. Second, it may be used on a 
one-horse two-wheeled cart, having at the rear about 9 feet of 
34-inch iron, or, better still, brass pipe, communicating with the 
pumps by means of a short piece of hose. To this pipe eight 
spray nozzles (two for each row) are attached in pairs. One. 
man pumps and drives, spraying four rows at each passage. All 
things considered, this is the most satisfactory potato-spraying 
outfit yet devised. It can be built at a cost of $30 to $40. 
“For large fields of ten or more acres geared pumps operated 
by horse power are entirely practical. Several good outfits of 
this kind are on the market. Their chief advantage over the 
barrel outfit last mentioned is that the labor of pumping is shifted 
from the driver to the horse. They have the disadvantage in 
For a general discussicn of spraying machinery see Bulletin 243 of this 
Station. 
