si a 
64 THE APPLE. 
the branches. If they are allowed by thr careless cultivator ta 
go on and multiply, as they soon-do, incredibly fast, they will 
in a few seasons,—sometimes in a single year,—increase to 
such an extent as almost to cover the branches. In this cater- 
pillar state they live six or seven weeks, feeding .most vora- 
ciously upon the leaves, and often stripping whole trees of their 
foliage. ‘Their effect upon the tree at this period of the season, 
when the leaves are most important to tle health of the tree and 
the growth of the fruit, is most deplorable. The crop is stunted, 
the health of the tree enfeebled, and, if they are allowed to re- 
main unmolested for several seasons, they will often, destroy its 
life or render it exceedingly decrepid and feeble. 
To destroy the caterpillar various modes are adopted. One of 
the most effectual is that practised by Mr. Pell in his orchards, 
which is to touch the nest with a-sponge, attached to the end 
of a pole, and dipped in strong spirits of ammonia; the sponge 
should be turned slowly round in the nests, and every insect: 
coming in contact will be instantly killed. This should be done - 
early in the season. Or, they may be brought down and de- 
stroyed with a round brush fixed to the end of a pole, and work- 
ed about in the nests, On small trees they may be stripped off 
with the hand, and crushed under the foot; and by this plain 
and simple mode, begun in time, with the aid of a ladder, they 
may in a large orchard be most effectually kept under by a few - 
moments’ daily labour of a single man. As they do not leave | 
their nests until nine in the morning, the extirpator of caterpil- 
lars should always be abroad and busy before that time, and 
while they are all lying quietly in the nests. “And let him never 
forget that he may do more in an hour when he commences 
early in the season, than he will in a whole day at a later pe- 
riod, when they are thoroughly scattered among the trees. If 
they are allowed to remain unmolested, they spin their cocoons 
about the middle of June, and in a fortnight’s time comes forth 
from them a fresh brood of moths—which, if they are not put an 
end to by bonfires, will again lay the eggs of an infinite number 
of caterpillars for the next spring. 
The Canker worm, (Anisopteryx pometaria, of Harris,) is in 
some parts of the country, one of the worst enemies of the apple, 
destroying also its foliage with great rapidity. _ It is not yet com- 
mon_ kere, but in some parts of New-England it-has become a 
serious enemy. The male is a moth :with pale, ash-coloured 
wings with a black dot, a little more than’an inch across. The 
female is wingless, oval, dark ash-colored above, and gray beneath, 
The canker worm usually rises out of the ground very early 
in the spring, chiefly in March, as soon as the ground is free 
from frost; though a few also find their way up in the autumn 
The females haying no wings, climb slowly up the trunks of 
the trees, while the winged males hover about to pair with them 
