The Florida agriculturist. [volume] (DeLand, Fla.) 1878-1911, 1880-09-29
hat the powder affected any of

that the powder affected any of
them.
July 21st.--Found the powder
still upon the plants. There has
been no rain, and but little dew in
the intervaD. Only two fiea-beetles
were found, and these were on the
under side Of the leaf.
July 19th.-Found the striped
blister beetle defoliating q large pas
sion Aower vine, Upon applying
the powder, The insect was at once
affected, and began to make vigorous
efforts to remove the irritating sub
stance by rubbing the legs against
the body. In less than three minutes
however, it is unable to run, and it
moves its legs in drunken sort Of
way.
July 2lst.-One Of the beetles,
which yielded to the powder two
days ago, lies helpless on its back,
but keeps up constant twitching Of
the last joints Of the legs, showing
life, but nothing more. 1t is now
more than fifty hours since 1t ceased
to walk, and yet it is alive. The
powder busted over the vine has
completely freed the vine from its
enemies
August 2d.-One week ago rain
fell. A few beetles are now found
about the vine.
July 19th.-The imported cab
bage butterfly (Pieris rapoe) is now
to be found everywhere in the vicin-
ity of cabbage patches. AS they
were found about thistle blossoms,
an effort was made to dust powder
upon them, as they rested, gathering
the honey. This is easily done, but
the creature is found to fly away and
continue its search for food tor some
time. OF several so busted, only one
is known to have yielded to the
powder. -Four were caught and
busted with the powder, and allowed
to fly about in the room. where they
could free themselves, if possible,
from the effects In three inmates
they showed siges OF irritation, and
in two more their movements were
drunken, the power Of fight rapidly
yielding to the poison, which seems
always to effect the limbs first. In ten
minutes they were helpless, and after
| five hours not vet dead. At the
same time the worms Of this species
were =sssr-.-ss .iss two minutes
showed signs OF pain, and grew rap
idly helpless. A very little OF the
powder would evidently suffice for
these. In one instance about thirty
of the larvae, mostly full grown, were
placed in tin box, in which was
dropped one OF the blister beetles
that had adherlng to its body such
of the powder as remained after the
beetle had struggled to clean itself.
In an hour and halt from the time
the box was closed latter placing
within it the beetle) it was opened,
and all but seven of the worms found
dead, or dying, and they had avoided
contact with the beetle by crawling
to the top OF the box.
July 23d.-A pumpkin vine was
found, upon which were a few tull
grown squash bugs, and hundreds of
smaller ones-enough to entirely
kill the vine i'll short time. Upon
applying the powder, the bugs did
not seem to show much irritation,
and it was even surmised that they
would not yield to it's effects. -Four
hours later, however, it was found
that, with hardly single exception,
they were dead, or dying, and lay in
great numbers on the ground,
directly under the very leaves upon
which they had been feeding.
July 24tii.-One OF the clerks at
the Treasury Department com
planned OF the cockroaches in!estiug
the desks at which they work. Pow
der was suggested, and tried upon
one desk, and tor a week not one
has been found about the desk III
question, though abundant about the
adjoining ones.