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Having thus far noted the excellence 

 of the Larch, I shall now advert to what 

 rnay be called its defect, one only being 

 known, and that of a late standing ; for, 

 though the plant has been introduced 

 into the kingdom, at least 150 years j 

 it is only within the last ten that its 

 particular enemy has attracted notice. 

 This is an insect ; (probably one of the 

 numerous tribe of the Aphides ;) the 

 same which has frequently been observed 

 upon the Scotch Fir, but never to remain 

 long, or do any material damage. Up- 

 on the Larch, the case is very different, 

 as there, these destructive creatures ap- 

 pear in innumerable myriads reducing 

 trees, prcviouslij vigorous, to a state of 

 languor, and not unfrequently killing 

 them, as it were, by inches. Of these, 

 as of the insects which infest Fruit trees, 

 we ma}' observe, that they are uniformly 

 most numerous upon plants previously 

 in ail unhealthy state, and seldom fai 

 to increase the disease. As a general 



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