bserved in the orchard they should be
destroyed, which may be readily and effectually done by climbing the
trees, and with the hand protected by a mitten or glove, seize the
tent and crush it with its entire contents; also swab them down with
strong soapsuds or other substances; or tear them down with a rounded
bottle brush.

Burning with a torch not only destroys the caterpillars but injures
the trees.

It should be observed, however, since the caterpillars, are quite
regular in taking their meals, in the middle of the forenoon and
afternoon, that they should be destroyed only in the morning or
evening, when all are in the tent.

Another remedy is to shower the trees with Paris green in water, in
the proportion of one pound to one hundred and fifty gallons of water.

THE FOREST TENT CATERPILLAR.

_Clisiocampa disstria_ (Huebner.)

This species, commonly known as the forest tent caterpillar, closely
resembles the apple tree tent caterpillar, but does not construct a
visible tent. It feeds on various species of forest trees, such as
oak, ash, walnut, hickory, etc., besides being very injurious to apple
and other fruit trees. The moth, Fig. 17, b, expands an inch and a
half or more. The general color is brownish yellow, and on the fore
wings are two oblique brown lines, the space between them being darker
than the rest of the wing. The eggs, Fig. 17, c and d, which are about
one twenty fifth of an inch long and one fortieth wide, are arranged,
three or four hundred in a cluster, around the twigs of the trees,
Fig. 17, a. These clusters are uniform in diameter and cut off
squarely at the ends. The eggs are white, and are firmly fastened to
the twigs and to each other, by a brown substance, like varnish, which
dries, leaving the eggs with a brownish covering.

[Illustration: FIG. 17.]

The eggs hatch about the time the buds burst, or before, and the young
caterpillars go for some time without food, but they are hardy and
have been known to live three weeks with nothing to eat, although the
weather was very cold.

[Illustration: FIG. 18.]

As soon as hatched they spin a silken thread wherever they go, and
when older wander about in search for food. The caterpillars are about
one and a half inches long when fully grown, Fig. 18. The general
color is pale blue, tinged with greenish low down on the sides, and
everywhere sprinkled with black dots or points, while along the middle
of the back is a row of white s