Richmond times-dispatch. [volume] (Richmond, Va.) 1914-current, 1915-08-08
Earth, and H0W the

But according to Professor Ealand one of the fac.
'fS WHICH hept down the destructive bugs s lessen.
ing III iorce because man himself is not eating as many
OF the bugs as he used to. For instance he Gays:
Many OF the North American Indian tribes were
In the habit OF consuming large Quantities NJ Rockv
Mountain locusts. insect of great economic mnort
seeing that It greedly consumed every green leaf en-
countered In its wanderinss. When the Indian was
at his zenith tho Rocky Mountain locust was pract,
cay innocuous Since his subtugaton 1t has increased
and spread to such extent that Is serious pest
The Bushmen of Africa keep down some moth pests
by eating their caterpilars. and, according to Pro
lessor Eaond the lumbermen Of Maine are not averse
TO q meal Of large black wood ants.
UP until comparatively recent times great Quant
ties of insects used for medicine for dyes and
but this has steadily lessened and with the
lessenng. naturally. the insects have increased
How is to cope with this infinite fecundIty
and amazing will to live? Scientists all over the
world working on the problem In the first nIace
/, is absolutely essential that nsactiyorous BIRDS
throughout the world be protected by stringent
legislation 1t has been indeed the wanton s!aug er
OF these birds for food purposes and for woman.s
wicked vanity and the destruction forests thus
slbe for the shifting control the effects OF
which we are just beginning The next most cf
fecive fighting the bug world is by fostering
parasites and other insects which destroy the host,
inmical TO man. This method of natural insect con
troll has been successfully carried out in America.
striking case being that OF the destructive Hessan fly
and a parasite called Polygnotus hemalis In 1906
serious outbreak OF this ny occurred In Pennsylvania
pupae or catcrp!l!a-s found be parastzed by
poygnous. AT later date the Hessian fly pest broke
brought from Pennsylvania with the result that by
midsummer all the fy pupae discovered to be
Parasitzed and the pest effectively controlled.
Ladybugs. the familiar little bug gardens are
coilected regularly in California during Winter
Information for shipment to various parts the world
as rotroi lot plant nee For many years the orange
and lemon groves Of California were threatened with
ruin owing to the depreciation of relatively large
scale insect known as the Cottony Cushion Scale it
was probably introduced the United States from
Australia In 1883 The mechanical means of control
having tailed IN 1883 Professor c. V. Riley. chief Of
me American Bureau OF Entomology, to the An
Podea to try to discover THAT inject IL any kept the
Cottony Cushion Scale in check in Its native land He
round that the scale insect rendered almost harm
less In Australia because whenever appeared was
eagerly deyoured by small ladybug known to science
as Novlus cardinails This little beetle was eagerly
transported to California where. fortunately for the
citrus growers. 1t hourshed and multiplied. and az
consequence the cottony cushion scale Is now no
longer serious factor ia California But to this day
large numbers OF the !adybug reared annually al
sacramento. and whenever outbreak of the scale
occurs an army of the little beetles despatched to
deal with the trouble