Elmore bulletin. [volume] (Rocky Bar, Idaho) 1889-1906, 1897-05-12

hanger from Foreign Insects.
7. d. A. Cockrell, entomologist of the
New Mexico agricultural experiment
station. writes:
1t is commonplace observation that
most OF our injurious insects are in
PRODUCTIONS from abroad: and the most
cursory glance over the literature of
economic entomology will show that
every little while one is added to the
number OF these alien pests. After years
Vi comparative indifference, the coul-
Try Is at length becoming alive to the
serious danger to our horticultural in
terests from these continued introduc-
tiohs, and measures are contemplated
Tor preventing them. Already indeed,
lhe state of California has established a
horticultural quarantine officer, with
lull power to destroy, if need be- all in
rested plants arriving at that port,
But California cannot alone protect the
United States from infestation, nor can
she eHlciently protect herself, so long as
there are no proper precautions taken
IN other parts of America. In this mat
yer, as in many others. the United states
N~' 'NA AAV NtilN0d DNtltNhs NANNNAt
indeed, by the people and legislatures
OF the several states and territories,
out still uniformly and consistently,
from Maine to San Diego, and from
Fuget Sound to Key West 1t should be
clearly understood that what we now
know is but tithe of what might be
known, had proper attention been paid
TO the Injurious insects of Japan, the
Pacific Islands, Mexico, Central and
South America, and the West Indies
Every collection of scale insects from
those regions contains new species,
ana the greatest Investigations yield
abundant new and unsupported facts,
The rapid spread of scale insects. In
these days of easy and rapid transit,
cold storage and wardian cases, plants
are carried all over the world, and no
insects are more easily carried upon
them than the scale insects. Thus 1t
happens that while under natural con
dtlons scale insects have usually q
rather restricted distribution, many
species of them are becoming or have
become worldwide, and it looks as If
the end would only be reached when
every country possessed all those kinds
which were able to exist in its climate.
The following instances will illustrate
the above statement:
"a Daspis amygdali or lanatus, the
destructive peach scale, was described
| from Australia in 1889. To-day we
know it from Australia, Ceylon, Hong
Kong, Japan, several localities In the
United States, Jamaica, San Domingo,
/ Grand Cayman, Barbados. Martin
4 Ique, Trinidad and Cape Colony.
CD Aulacaspis rosae, the common
rose scale, was described from Europe,
but is now found also in the United
States, Australia, New Zealand, the
Sandwich Islands, China and Jamaica.
go Chionaspls citrl. very destruct-
i've scale on citrus plants, was described
from Louisiana and Cuba in 1888; now
it is known also from Trinidad, An
tigua, Demerara, Bermuda, Mexico
Tonga, New Zealand and Australia.
"a Howardia bielayis, trouble.
some scale of citrus and other plants
was described in 1888 from specimens
on hothouse plants in Washington City
now it is known out-of-doors from
Trinidad, Mexico, Tahiti Sandwich
Islands and Ceylon.
80 Lecanium oleae. the well-knowi
black scale of Californiais is found, ou
of the United States, in Jamaica, An
tigua, Trinidad, Europe, New Zealand
Australia Sandwich Islands and Mex
leo.
These may suffice as examples, whic
could be multiplied many times if dt
sired