The infested trees, advises the de
partment, can be treated during tho
dormant season with a strong solution
of kerosene emulsion without any In
jury to the trees. This emulsion used
at 25 per cent, or more in strength, or
whale oil soap at the rate of one
pound to a gallon of water, has been
reported to be very effective In killing
the scales hit by the spray.
In spraying during the period when
the trees are in foliage a weaker so
lution must necessarily be used. It Is
not safe to use kerosene emulsion
stronger than a 10 to 12 per cent, oil,
and even at this strength there might
be a slight injury to the foliage. It
has been demonstrated that a single
application of a 10 per cent kerosene
emulsion applied at the proper time
in summer will destroy about two
thirds of the recently hatched Insects
and two applications, one applied at
the middle and the other at the end
of the hatching period will destroy
four-fifths of them.
MACHINE FOR TREE PUNTING
Implement Designed by Utah Black
smith Enables One Man to Plant
Many Trees In Short Time.
With a tree-planting tool designed
by a Utah blacksmith, the hole is dug,
the little tree inserted and the earth
packed around the roots In one oper
ation. The Implement consists of a
bar with a crossarm at the top and
*--J*
Tree Planting With Machine.
