The daily sentinel., 1912-04-15
DEMONSTRATION
GREAT SUCCESS
Page Orchard Scene of Remarkable
Experiments in Use of Explos-
ives.-Big Crowd Sees Spec
tacular Dynamite Work.

The first of the Du Pont dynamite
demonstrations given by II. A. w.
Manard, agricultural demonstration
for the Du Pont Powder company,
was given this afternoon before an
enthusiastic audience. at the orchard
of w. f. Page on Orchard Mesa. The
attendance was about 800 and in
cluded most of the progressive fruit.
growers of this section.
The first work done was preparing
holes for trees. One-fourth charges
of Red Cross Extra 20 per cent dyn-
amite were placed in two holes two
feet in depth and holes tamped to the
surface with loose dirt. The charge
was fired by means of fuse and cap
attached to cartridge. The effect of
the shot was felt 40 feet from the
hole. The visible effect was the
throwing of dirt to height of six
feet, falling back on the hole and
bridging over in mound. A shovel
forced into this mound caused the
earth to drop to a proper depth for
a tree mole. The earth was well
pulverized and shaken to radius
of from six to 10 feet in every di-
rection from the hole and the earth
was loose to a depth of four feet
The shots for tree planting. including
labor. cost 6 &c per hole, according
TO MIR. Manard.
The advantage shown over a spad-
ed hole was that the earth was crack
ed many feet in all directions where
plow would never go. reservoir
for the entire root system was es-
tablished, causing irrigating water
to concentrate in the vicinity of roots
and not over the entire acreage.
In ~ avI oil
known as renovating and rejuyenat-
ing was shown This work differs
from the above in that a heavier
charge Is used and at greater depth.
The method employed was to put
charges of as to u pound charges of
Red Cross 20 per cent dynamite in
holes between rows of trees at a
depth of three feet. The explosion
of the dynamite breaks the ground
in the vicinity of the roots. allowing
freer and new growth. Insects and
their eggs are destroyed by the ex-
plosion End its resulting gases.
This work cost lie per shot.
The last work shown was by far
| the most spectacular of the three
stump-blasting and tree telling. This
work was done singly and in groups
| by electric battery and electric fuze.
1t was decidedly interesting to see
how simple and cheap an operation
| 1t Is to have tree taken out in
an instant. leaving a hole devoid of
| irsects, ready to receive the new
tree Mr.. Manard also showed how
group blasting is done in acreage
unusually full of stumps. BY SIM
| ply pressing down the lever on a
battery a spark is sent through cleo
| trio wires, and 10! a dozen stumps
are blown out in an instant.
A very keen interest was shown
| by all who attended and sufficient
powder to put Grand Junction off
the map, If properly applied, was
contracted for. Several of the old
orchards will be given few instruc-
tions on how to become young again,
as well as having the holes for new
trees dug by dynamite rather than
| the spade.
Before the demonstration Mr. Ma
nard gave a short talk on explosives
in general, and the causes which
cultural work.
The next demonstration will be
held at the Charles Lamb orchard at
| Highland park, five miles northeast
of Grand Junction, near Clifton, on
| Wednesday at 2:30 p. m. Other
demonstrations will be given at Paii-
sade. Fruita and Mack.
Moving pictures of this work will
be shown at the Orpheum theater
Tuesday afternoon and evening. as
well as a trap shooting film, The
Grand American Handicap" All
sportsmen interested in trap shoot
ing should see this film. These pic
lures are shown in addition to the
regular program and there is to be
no advance in prices.