The Hocking sentinel. [volume] (Logan, Ohio) 1871-1906, 1894-07-05
INJURIOUS INSECTS.

The Professor of Entomology of the Ohio
State University Describes Some That Are
Doing Special Damage in Ohio This Year.
At the meeting for May of the Colum-
bus Horticultural society. in answer to
the question, What injurious insects
have attracted attention this spring in
Central Ohio?" Prof. Killicott reported
the following:
No remarkable outbreaks of old
pests or appearances of new ones have
been noted; yet there have been several
cases of injury that you may be inter-
ested in.
1. The brassy fea-beetle has ap-
peared in injurious numbers on
young complaints in different places
in Pickaway county. 1t riddles
the tender leaves, greatly weakening
or even killing the plant. In some
cases am told corn was replanted on
account of its damages. Prof, S. A.
Forbes has reported instances of sim
liar depredations by this common beetle
in Illinois.
2. Mr.. VIM. Stelzer, of Celina, sent
me examples and an account of injury
to apricot trees by scale insect. The
adult female scale is thick brown
oval body quarter of an inch or moro
in length. May II there were innu-
merable numbers of eggs under each
large scale; these may be expected to
hatch in few days, when the minute
insects may be found crawling over
the twigs, distributing themselves and
finding suitable places to sink their
beaks into the soft bark, where they
remain fixed, feeding upon the sap and
growing during the summer. Proba-
bly, in the succeeding spring the males
hatch as minute white two-winged
creatures; after seeking the fe-
males, the larger scales, they
soon disappear. The females
lay their eggs in a few
days, covering them with their shriv.
eled bodies until they hatch, thus COM
pleting the cycle of changes.
An efficient remedy is thorough
spraying with kerosene emulsion when
the young are moving about the twigs,
and repeating if necessary.
3. The Algerian blackberry crown
borer has been known in the unculti-
vated plant about Columbus for several
years, but has not been reported from
the cultivated varieties. Early in May
my attention was called to patch that
was being plowed because it was not
doing well; on examination the roots
of large percentage of the plants
were found to be inhabited by the
above named borer. They were cer-
tainly in part to blame for the failure
to do well.
The moth lays her eggs at the crown
late in the season; the larve enter and
doubtless live in the roots two or three
years; when ready to transform they
bore upwards in the canes, escaping as
moths in August and September. The
pretty, wasp-like moth may be seen in
August and September, resting on the
leaves in the early morning or late in
the afternoon; they are easily destroyed
at this time.
4. have noticed on several occasions
that peach trees at Columbus and
GAINESVILLE were disfigured and injured
by an Algerian borer differing in it's
appearance and habits from the real
peach borer. 1t occurs in the trunk
and limbs wherever a wound or abra-
sion permits it to enter; the moth re-
sembles the male of the old-fashioned
peach-borer and doubtless has been
mistaken for it. 1t prefers, or has
heretofore. the plum and wild cherry,
especially such as grow in the orchard
or field. Perhaps the knife in early
spring is an available remedy.
S. The grain aphis is just now (May
26), multiplying in the wheat fields in
this vicinity. There is probably little
cause for alarm, as parasitic and pre-
daceous insects are sufficient to keep it
within bounds.