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6 
ing the most damage to the horticulturist at the present day; an 
if we take into account the multitude of insects which are prey in 
upon our shade and ornamental trees and shrubs, which, in tl 
estimation of many, are scarcely inferior in value to the fruit bea 
ing trees, we may safely conclude that the prospect is very Temol 
when the work of the practical entomologist will cease or mat 
rially diminish. And the force of this view is greatly enhance 
by the occurance, every year, to a greater or less extent, of ne 
species of noxious insects, or rather of insects which, having e: 
isted here or elsewhere in moderate numbers, from time imm< 
morial, have suddenly sprung into destructive profusion in consi 
quence of an abundant supply of congenial food, or the absence < 
their natural enemies, or other conditions favorable to life, son 
ot which are known, and some of which are obscure or inscrutabf 
The Colorado Potato-beetle, the Currant Saw-fly, the Asparagu 
beetle, and the Bruchus granarius/ to which we might add tl 
Pear-caterpillar (Gallimorpha Lecontei ), and the Lesser Appl 
leaf folder (Tortrix inalivoranaj) treated of in the following r 
port, were all unknown here as noxious insects until within tl: 
last few years. It is true that some noxious insects, on the oth( 
hand, have greatly diminished, and some, which have been tL 
sorest scourges of the orchardist, such for example, as the notoi 
ous Bark-louse of the apple tree, seem to be in the process of e: 
tinction. But we must not draw too much encouragement froi 
this state ot things, since it is also true that noxious insects ai 
sometimes known to disappear from one section of the countr 
only to break forth in greater number and virulence in anothe 
The Chinch-bug, which at one time rendered the raising of sprin 
wheat an impossibility in Northern Illinois for several years i 
succession, has, for many years, been wholly unknown in this se 
tion. And yet this very year it has again made its appearance i 
considerable profusion in a few localities, and I have recent! 
heard of its having been found hybernating under the sheaths < 
corn-stalks in my own county of Kane; not in great numbers, 
is true, but sufficiently numerous, I fear, to start a colony for tl: 
succeeding year. 
Whilst it is the business of the scientific entomologist, in apph 
ing his knowledge to economic purposes, to test the value of tl 
various antidotes which have been recommended against our ii 
