evergreens, killing the trees by a single defoliation.

The insect appears in the caterpillar stage from April to July. It
feeds at night and rests by day. The mature caterpillar, which is
dark in color, may be recognized by rows of blue and red spots along
its back. After July, egg masses are deposited by the female moths
on the bark of trees, and on leaves, fences, and other neighboring
objects. Here they remain over the winter until they hatch in the
spring. The flat egg masses are round or oval in shape, and are
yellowish-brown in color. See Fig. 102.

Remedies: Spray for the caterpillars in June with arsenate of lead and
apply creosote to the egg masses whenever found.


THE BROWN-TAIL MOTH

Life history: This insect was introduced here from Europe in 1890 and
has since done serious damage to shade, forest, and fruit trees, and
to shrubs in the New England States.

It appears in the caterpillar stage in the early spring and
continues to feed on the leaves and buds until the last of June.
Then the caterpillars pupate, the moths come out, and in July and
August the egg clusters appear. These hatch into caterpillars which
form nests for themselves by drawing the leaves together. Here they
remain protected until the spring. See Fig. 103.

Remedies: Collect the winter nests from October to April and burn them.
Also spray the trees for caterpillars in early May and especially in