Atlanta tri-weekly journal. [volume] (Atlanta, Ga.) 1920-19??, 1922-05-30

and comprehensive tnan ours ana perhaps
possesses a more spontaneous understand
ing"
AIRPLANE SPRAYERS
Several interesting and successful expert
ments have recently been made IN ONO with
airplanes as sprayers of trees when attacked
by caterpillars or other insects dangerous to
tree life.
ct feel sure" says H. A. Gossard, Ohio
state entomologist that one airplane can
dust a strip of forest or pecan orchard in
less time than twenty Of the most powerful
liquid spraying machines can cover. The
problem is to perfect busting materials SO
they will give results comparable with those
obtained by liquid spraying"
Mr. Gossard states that in France airplanes
are being used scout machines to discover
the location of grasshopper swarms and then
to scatter poisoned bait for the destruction of
these insects He then goes on to say that
several months ago the city entomologist OF
Cleveland, after experiencing great difficulty
in spraying some closely planted large trees
in one of the suburban parks constituting the
grounds of large club conceived the idea
that such tract could be busted from an
airplane. He communicated his idea to the
Ohio experiment station and solicited help.
A hopper was destined by specially de-
tailed mechanic to carry about 200 pounds
of arsenate of lead powder which could be
emptied into the air by series OF revolving
spoons operated by hand crank. The hopper
was attached to the side Of the plane some
what lower and behind the occupants OF the
cockpits so they would not breathe any or
the dust. Besides the pilot another man
was needed to turn the crank. The pro-
peller and current created by the movement
of the machine, assisted by gravltatlon, as
tributed the dust, which was caught by the
wind and carried through the tops of the
trees.
Mr. Gossard also mentions the success by
an airpane in destroying caterpillar pest
which was defoliating grove OF catalpa
trees, six acres in extent at Troy, Ohio.
"The airplane," he says, passed about
fifty feet out from one side of the grove and
twenty to thirty feet above the tops OF the
trees strong wind carried the dust over
the entire grove, nearly 400 feet wide, ana IL
could be found in easily perceptible quanti-
ties on weeds and grass for $50 feet in the
pasture on the distant side of the grove. Eff
fective busting was, therefore, done over
width of about 500 feet or at the rate OF
about ten acres per minute; and since the
passes can be reduced with perfected appara-
tus from six to two, normal rate OF appl1ca-
ton may be expected to be about thirty acres
per minute Within three days after the ap-
plication 50 per cent of the caterp1llars Were
dead and were strewn on the ground.
Mr.. Gossard believes that applications OF
arsenate of calcium for case bearers ana
budworms on large orchards Of big trees can
probably be made more satisfactorily and ex-
peditiously by airplane than with sprayers.
The catalpa trees busted were about thirty
feet tall and planted 8 by feet
Canadian Truck
Garden vegetables had much to do In
moIding the worlds opinion Of western
Canada In 1872, when the Canadian
west was unsettled and it was believed the
country was impossible for agricultural
purposes, an exhibition Of vegetables from
Manitoba was given in London. English
Of way
tations. They would not believe they were
genuine until they saw them sliced. They
were amazed to learn that western Canada,
which they had regarded as desert, could
produce such wonderful garden truck.
Today western Canada produces as fine
vegetables as are raised on the continent
F. w. Broderick, professor of horticulture
at Manitoba Agricultural college, recently
said that within five miles of Winnipeg he
had produced seventy-two varieties OF
vegetables. N
The war stimulated vegetable produc-
ton. War gardens we're established in
1917 throughout the west because of the
worlds shortage of food. From that time
on the growing Of vegetables has been
tensive in the three prairie provinces, not
only for home consumption but for the
market
The vegetables produced include virtual
ly every variety in common household use
in the temperate zone-cauliflower, carrots,
celery corn, cucumbers, potatoes, lettuce,
tomatoes, onions, parsley, parsnips, radishes,
rhubarb, spinach, squash, turnips
Production of potatoes in the prairie
provinces last year amounted to 100000
bushels, or one-eighth of the dominion's
yield; 1,484,000 bushels of turnips, and
100000 bushels Of fodder corn. The west
IS raising more vegetables than it needs, so
a large export trade is being built up Can
ner1es also are springing up in various parts
or the western provinces and they absorb
large part Of the production.
Mexican Editors.
The newspaper Ell Dictomen, of Vera Cruz
Mexico, announces that it has been forced
to suspend publication because of the &C.
ton of syndicates of workers" It declares
that this is the beginning Of projected
movement against newspapers with anti-bol-
shevist ideas. The editors it adds, have ap-
pealed to President Obregon for guarantees
for their lives.
PRESS TALK IN GEORGIA
BY JACK L. PATTERSON
Bound tn Go