TV RURAL. NEW-YORKER 
I 161 
The Economy of Dusting vs. Spraying 
There is some controversy concerning 
the use of the duster in orchard operation 
for the control of fruit-tree pests. The 
issue is still in dispute, yet I think it easy 
to prove that the duster is insufficient, 
provided we have certain given conditions. 
Here is the way we satisfied ourselves: 
1. It is well established that no satis¬ 
factory dormant spray for use with 3 
duster has been devised at a cost consist¬ 
ent with the results obtained. Therefore, 
a regular sprayer is required for this op¬ 
eration. at least. 
2. It is conceded that the dust used to 
cover an orchard costs considerably more 
than the necessary spray would; but this 
cost is supposed to be equalized by the 
time served in using dust over spray. 
Working from these facts.' I think it 
not at all difficult to show that- what is 
needed is a sprayer of sufficient capacity 
rather than the- need of two outfits, one 
sprayer and one duster. Perhaps the 
sprayer will cost as much in the start as 
the two outfits just listed, but we only 
have one machine to keep in order, in¬ 
stead of two, and, again, we have only 
one machine to house, instead of two. 
And I think we will all concede that 
these are not unimportant factors in con¬ 
sidering machines of this class. 
If we are going to purchase two out¬ 
fits. we will very likely get a “dinky” 
little sprayer that will not throw much 
liouid or maintain much pressure while 
doing it. Result: we’ll choose a calm day 
for spraying and fool around five or ten 
minutes to each tree that has any size. 
The cheap machine certainly won’t have 
a tower, and the spray-gun will be the 
magic device to reach ail parts of the tree 
from the ground. Further result: A poor 
job and a great waste of material. 
During the growing season this man 
will use his duster to kill off his orchard 
insects and fungi. It is conceded that 
he will use the duster so that the breeze 
carries the dust through the trees, using 
an east wind, for instance, to reach one 
side and a west wind for the other, if a 
thorough job is desired. The dust can¬ 
not be applied faster than the horses can 
transport the machine at a walk. This 
will establish the factor necessai'.v for 
use in our consideration of the subject, 
viz.: 
In spraying the old practice (as always 
reported) was to spray against the wind, 
the object being to wet the limbs by pro¬ 
jecting the spray against one side, while 
the wind was to cause the wetting of the 
other side, because of its action in caus¬ 
ing the spray to fog back against the 
other side. Of course, the man doing the 
spraying did not object to being thor¬ 
oughly sprayed by the wind’s action at 
the same time, and, of course, the spray 
wn<- to be ejected from the nozzle with 
enough force to pass through a big. 50- 
foot tree’s branches against said wind 
force. Today we are told that the .proper 
way is to choose a calm day and apply 
spray to the tree*from all sides; if dust¬ 
ing. drive at right angles to the wind’s 
course and let wind carry dust through 
the tree for you. In other words, use 
wind to carry your dust, but not in spray¬ 
ing. 
My contention is that the principles ai 
plieable to dusting are those that shoul 
be used in spraying. We do, and save 
good many dollars per year in so doiuj 
Here is the way it works out: 
We bought in a big 12-gallou per mir 
ute capacity sprayer this year. Afte 
receiving it we placed a tower upon i 
It always saves money to use a towei 
because we can l’each all tut branchc 
from a tower without recourse to the lonj 
thin coarse spray, which, of course, mean 
the use of more solution, if used. I 
spraying we use a pressure averaging £ 
least 250 lbs. per square inch—from ths 
to .“>00 lbs. The more pressure used, tl 
less solution required to do a tlioroug 
job. We spray with the wind, and I ma 
say that in spraying the other day unde 
these conditions were were able to covt 
every . twig and sizable branch on tl 
east side of ovfr 200 trees in a 80-year-ol 
block of big. healthy Baldwins and Greer 
itigs with only 200 gals, of spraying soli 
tion. We did this with the horses at 
walk, as they would be in dusting, an 
the whole job was completed in exaetl 
l 1 ! hours. I’ll vouch for those trees In 
ing sprayed until they were ready to dri] 
and that there were no limbs missed, 
dul the job myself. 
That is about all there is to this sul 
jeet. The liquid solution is considerabl 
cheaper than dust. If we can apply it £ 
quickly as we can dust, why use dust £ 
Dust is applied in a way a littl 
differently from what the liquid spray 
applied by most people, yet it is truly su: 
prising to hear the people talk aboiit In 
mg able to harness the wind to their pu 
poses when dusting, who can’t think tin 
it would work equally well with a spra 
km- 1 guess . we need a little more of tl 
ability to think, and our experiment sti 
tions are not entirely blameless in tl 
present situation, either. 
Orange Co., N. Y. u. t. demarest. 
^\-Y.—Mr. Demarest dot's not seei 
to consider the time spent iu obtainir 
water. In many steep and rough-lau 
orchards, the. water supply is at some di 
tance, and there is great loss of time i 
going back to fill the tank. Iu our ow 
case this is the chief argument iu favt 
i t dust. \\ e have often suggested a con 
pouud machine, so that the duster eon 
be placed on top of the tank, if need b 
aud attached to the power used on tl 
pump. I hat fwould be practical an 
much cheaper than two separate outfits. 
Said a New York State farmer after he had 
walked 20 hogs to market. 
The market was ten miles away and five fat 
hogs dropped dead before they reached there. 
The surviving ones lost from five to eight 
pounds apiece on the trip. 
Hogs were bringing #22 a hundred that 
day; and the farmer’s loss totalled a little 
over 1075 pounds of good, saleable pork, 
worth #240. 
A Selden Farm Truck would have saved this 
farmer #240 in this one instance alone. Similar 
problems present themselves daily on every 
” construction is un¬ 
farm; and savings of #240 and more are effected 
as often where Selden FARM Trucks are in 
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Selden "In-Built 
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