Cincinnati daily press. [volume] (Cincinnati [Ohio]) 1860-1862, 1860-04-10

MEBTfEGoFTHE CINCINNATI HoRricuLTbRAL
SdoiErf.-The Cincinnati horticultural So,
ciety met as usual, last Saturday, in Bacon's
Building, President Orange in the chair.
The subject for discussion-the grating OF
h the ,grapc-,,yas called gp and partieipated in
Pierson, Warder dnd others, but nothing was
ELECTED of sufficient interest for publication.
The Secretary read communication from
James Deniston, Of Eaton Ohio, In regard TO
the decay of apple trees, In which he states
that some years ago he had concluded that
the injury done to che apple tree on the
Southwest side was caused by the hot sum
mer sun, But moro recently he has come to
the conclusion that the injury or sap blight
that is destroying our orchards SO rapidly, is
caused by the suns rays in the winter. In
support Of this position, he offers the follow
ing reasons;
1st. That the intensity of heat communi-
Gated by the suns rays TO the stock Of a tree
is in proportion 10 tho number of said rays
that fall ON given area of itssurface.
I'd. That the effect Of said rays on trees is
the greatest at that time of the day when the
mercury ranges the highest. "a. l-,,
Sd. That summer rays to the horizon or
plane of the earth are winter rays to the per-
pendicular object or body of u tree, aud Uice
versa; consequently, there are IL greater NUM-
Der Of the suns rays fall on a given area of
the surface of q tree in the winter than in the
summer, which would of course produce
greater heat there in proportion to the tenn
perature of the surrounding atmosphere than
in summer 70
4th. That the mercury ranges further in the
winter than in the summer, to-day 20 degrets
above zero, and the sun impnging its rays
against the body of the tree with the effect
and relation of a July sun to the horizon, and
perhaps in forty-eight hours or less, the mer-
curry. 10 or 80 degrees below zero. With this
view Of the case before us, is IL any wonder
that our fruit-trees are decaying2 ..,
Upon motion of Mr.. L. p. Cranch, it was
ResolUed, That the Nominating Committee
appointed to select suitable persons, mem
subjects, be instructed to add TO the list q
Committee on Rural Agriculture.
DIR. W. b. Chapman presented specimen
of the work of an insect on the common
raspberry, apparently the same as the one
presented few weeks ago on the grape vine,
which the Committee on Entomology sug-
gested at that time to be Cicada DIR. Chap
man stated that the grub of the Cicada leaves
the tree as soon as it is hatched and is pro-
vided with six strong legs, its retreat being
the ground, where it subsists on roots &C.,
the grub of the present insect seeming to be
a worm destitute of legs, and apparently liv-
ing on the pith of the plant.
The above specimen on the raspberry was
referred to the Committee on Entomology for
examination -t
1t was stated by some of the members that
the whole Of the raspberry crop, in some
places had been cut off by the depredatons
of the above insect
DR.. Warder stated fact thnt he had dis
covered in Entomology, viz that some of the
common earth-worms were phosphorescent
similar to the glow-worm. a
The followinggentlemen were unanimously
proposed by w. Fl. Irwin, and 7. H. johnson
by Z, j. Hooper, after which the Society ad-
journed.