88 
THE NATIONAL NURSERYMAN 
INFORMATION ON SPRAYING MACHINES 
SELECTING A SPRAYER 
By C. H. CLARK 
Recently a statement was made in one of the Bulletins of 
the United States Department of Agriculture, that insect 
pests do more harm to our forests than forest fires, the 
damage from which amounts to many millions of dollars 
annually. If these pests work such damage on our hardy 
forest trees, the losses they and fungous diseases cause in 
orchards, farms, and garden crops must be an almost incon¬ 
ceivable quantity. 
As one of the chief factors in combatting these pests and 
preventing this enormous loss to crops, the spray pump has 
become one of the most valuable devices ever produced for 
the agriculturist. Its importance is such that no fruit grower, 
farmer or gardener can afford to do without one, and the 
selection of a sprayer is a matter worthy of careful thought 
and investigation. 
Different conditions require different types and capacities 
of spray pumps, and to enable every agriculturalist to obtain 
a pump to fit his special requirements, the leading manufac¬ 
turers have developed a large number of styles and capacities 
of spray pumps. In this article we will give a brief descrip¬ 
tion of the most widely different types and enumerate the 
classes of services for which each of the different pumps is 
particularly suitable. 
BARREL SPRAYERS 
Fig. I 
This type is operated by hand 
and is suitable where the acreage 
to be sprayed is small. In 
general, it is used in orchards of 
300 trees or less. Where labor is 
cheap, however, many of the large 
orchardists use several of this 
type of 
spray e r 
rather 
than a 
s in g 1 e 
larger outfit. Barrel carts are pro¬ 
vided on which the sprayers can be 
mounted and moved from place to 
place easily. 
TWO CYLINDER HAND SPRAYERS 
Fig. 2 
This type of sprayer comes in 
between the barrel sprayer and 
power outfit, being used where 
operations are too extensive for the 
barrel sprayer and where the orchard 
is not quite large enough to warrant 
the use of a power outfit. It is 
Fig. I 
generally used in orchards that have from 3.00 to 500 or 600 
trees, and is mounted on a sled or wagon with the barrels 
of solution. The pump illustrated is also largely used for 
cold water painting and white washing in barns, factories, 
and other large buildings of this type. 
SMALL HAND SPRAYERS, 
BUCKET TYPE 
Fig. 3 
Fig. 3 
This pump is used in con¬ 
nection with a bucket or tank 
and is suitable for garden or 
green house work, in spraying 
shrubs, vines, etc., in fact any 
service where the operations 
are not very extensive. It is 
also used a great deal for white 
washing fences and small 
buildings, spra3dng cattle with 
mixtures to protect them from 
flies, for washing vehicles, 
sprinkling floors, etc. 
POWER SPRAYERS 
Fig. .4 
This sprayer is made 
for use in large orchards 
having from 500 trees 
up to several thousand. 
With this' equipment 
two men can do the 
work of several with 
hand sprayers, and in 
large orchards a big saving is made in this way in labor, cost, 
and time. A jack is provided for connecting the pump to a 
gasoline engine, and the outfit is so arranged that the engine 
can be detached at any time and used for other duties when 
the sprayer is not in use. Outfits are made up with this type 
of pump mounted on truck together with tank, engine, tower, 
etc., so that the whole spraying equipment can be easily 
moved about in the orchard. 
Fig. 4 
TRACTION SPRAYERS 
Fig. 5 
Fig. 5 
This outfit is drawn by a horse, and power is obtained by a 
gear attached to the wheels. It is largely used for spraying 
