The Daily Ardmoreite. [volume] (Ardmore, Okla.) 1893-current, 1907-03-27
PROF. c. e. sANBoRN. A SPECIAL.
lsT HERE ON TOUR.
RESULT OF INVESTIGATION
Lady Bugs and Kindred Insects Enc.
mics TO the Pest-Cannot XIII
With Mechanical Devices.
No Foe to Corn.

who is working in cooperation with
the Texas Agricultural and Mochani.
cal College in studying the habits ol
the grccnbug pest in Texas. was hero
Wednesday in company With W. NJ
Gwyun Of the Whaley Win 4 Elcva.
tor Co, for the purpose of ascertain.
ing the area OF the infection, and the
damages that have accrued from the
bug, as well as that which is liable
to accrue
Prof Sanborn has completed the
tour OF the grain region Of Texas, and
partially of the state Of oklahoma.
He will complete the Oklahoma invos.
tigation and then proceed to Kansas
for further study.
In speaking of his research in thi
green bug pest matter he had tn,
following to say:
81 have been studying the green
bug with view Of getting Il means
by which it may be oradicatod. cs-
pccially in Texas. At tn present
time three principal methods Of eX-
termination have presented them
selves, as follows:
First by ascertaining the life of
the bug and carefully studying the
same, and If possible oradicating II
when least numerous and in the cgg
stage.
Second; BY augmonting nature in
the distribution of inimioal insects
which prey upon the green buy.
Third. by mechanical device,
which at present seems to be the
| least practical of all methods.
The first method Of eradication /
have done considerable laboratory oh
servation work. The green bug, or
tTMopetra Graminum,) discovered
by Rond, ordinarily reproduces yivi-
pariously, that is, has its young alive.
It. requires eight days for an indiviaua
bug to acquire its growth, in which
Each individual reproducos at the rate
Of about ten bugs per day, and will
| give birth during its life time 10 a
total of from 30 to 100 About ten
per cent of these bugs under ordi-
nary conditions will acquire wings
which are the dispersitory forms. I'm
der abnormal conditions all of the
! young may acquire wings. Under alb
normal conditions Is meant non sue.
culent condition Of the food plants. o
'cours under these abnormal clndi
tions ,..- green bug cannot exist ard
nature provides it with wings b.
which It can dispcrse and migrate OF
infest new fields.
Under the second method we de
pend upon the inimicai insects oi
which about ten species ar known
These ten species are divided int
two classes, the parasitical and IN
predatory. The former kills the aphid
or bug by living on its viscera or in
ternals. The latter kills the aphiC
by devouring It, OF the parasites tw,
species commonly known as tn,
Ichneuman flies of the latter ol
predaceous insect about eight specie
known as lady bugs, syrphis flies
lace wings flies and stedymus beetles
The inimical insects reproduces owl
perously, that Is, by the egg method
This requires warm weather, which T.
the reason why some think that no
weather drives away the green bug
d when as a matter Of fact, II Is th'
lady bug and such insects We arr
depending greatly upon this method y
eradication. In fact, we know we car
control the pest with this method. II
the meantime, however. We will stud
its life history by which We vii
evolve a better method.
"The third plan or mecnanical d,
r vice, in which We have no faith a
0 present, since we have demonstrate
e that they cannot be killed by the al
| plication OF steam in an economics
p. or practical measure. Such a motho'
r however. will be continued throug
@ the hope of exterminating ther
/. through mechanical devices not yc
a known.
2 mo poison method can be used
any advantage since this insect take
its food material by means of bea
similar to a mosquito The setae :
3 this beak, which extends into the 4
side tissue Of the plant do not o.
II tain any poison that may be put O
e the surface Of the plant. Furthe
7. more, any poison that may be put q
I, the surface OF the plant may al
come in contact with the aphlds bod