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FIRST ANNUAL REPORT OF THE 
found to bear these leaf-galls only to a limited extent, is a hybrid between the Northern 
Fox Grape and the Frost Grape. Certainly its botanical characters seem to me to be 
intermediate between these two species. 
The practical lesson to be drawn from the above theory is, that where two varie¬ 
ties of cultivated grape are in other respects equally desirable, and equally suited 
to the soil and climate of the vineyardist — say, for instance, the Clinton and the Con¬ 
cord— the Concord should be preferred, because, being a variety of the Northern 
Fox Grape, it never bears these leaf-galls, any more than the wild species from which 
it took its origin ; while the Clinton, being a variety of the Frost Grape, is often griev¬ 
ously afflicted with them, like the source from which it sprang. 
CHAPTER III. — The Rose-bug. ( Macrodactylus subspinosus , Linnaeus.) 
In particular seasons, as is well known, and in particular localities, this insect occurs 
in prodigious swarms, and gathers upon grape-vines so as to strip them almost entirely 
of their leaves. The only known remedy that is practically available, is to jar them off 
the vines and kill them; and of course, if we can induce them to concentrate their 
forces upon one particular vine and leave the rest alone, the labor of destroying them 
will be very greatly diminished. 
Luckily for the grape-grower, this can be done. There is concurrent evidence from a 
great number of different sources, that the Rose-bug prefers the Clinton to all other 
cultivated varieties, and will gather upon that and leave the others unmolested. In 
proof of this assertion, I quote the two following passages from among a number of 
similar ones, the first from the Report of the Winter Meeting of the Fruit-growers’ 
Association of Western New York, Jan. 23d, 1867, the second from the American Journal 
of Horticulture , Sept. 1867, p. 163. 
“ F. C. Brehm thinks the Clinton the best vine to draw rose-bugs from other vines, 
and keeps one in his garden for that purpose.” 
•‘When I saw a paragraph in a Horticultural Paper, advising grape-growers to keep 
one vine of the Clinton in the garden for the use of the rose-bugs, I thought it merely 
a feeble joke ; but experience teaches me that it is no joke at all. I have a Clinton vine 
at a little distance from a dozen other kinds, and its leaves are entirely riddled by the 
Rose-bugs ; while I have not found six bugs on the other varieties, and none at all on 
the roses. I pity the want of taste displayed by the bugs, but am glad to find that the 
Clinton is good for something.-Since writing the above, I have found bugs in abun¬ 
dance on the Franklin; but that only strengthens the case ; for the Franklin is much 
like the Clinton and just as worthless.” J. M. M., Junr. 
INSECTS INFESTING THE GRAPE.— On the Root. 
CHAPTER IY. — The Grape-root Borer. ( AEgeria polistiformis , Harris.) 
This insect, which strikingly resembles the common Peach Borer, ( HJgeria exitiosa , 
Say,) in all its stages, both in size, in shape, and in the general style of its coloration, 
was observed fifteen years ago by Dr. F. J. Kron, of Albemarle in North Carolina, to be 
very destructive to the cultivated grape-vines there. I see from the Monthly Reports 
of the Agricultural Department for 1867 (pp. 329 — 330), that Mr. H. J. Krone, of the same 
place — who may probably be a relative of Dr. Kron’s, though his name is printed with 
an E at the end of it—“gives discouraging reports about the destruction of grape- 
