The Bryan daily eagle. (Bryan, Tex.) 1895-1898, 1897-05-29

leerya purchase in California. The san
lose scale. 80 destructive In the United
States. attracts so little attention
wherever Il originally came from, that
We do not 10 this day know with any
certainty is original habitat Species
closely allied 10 the San Jose SCALE
natives OF the United States. are not
nearly so destructive. The red scale oil
the orange. Aspidiotus aurantii, IN ia
maica never infests citrus fruits, but
occurs on llgnum-vtae and palms; now
different are is habits In California;
In Japan there Is scale almost ex'
ncily Identical with the San Jose scale
which infests citrus trees. which the
real San Jose scale never does In Amer
lea. Therefore. IN view Of such facts as
these. we can fairly say that Ne never
know what We are In for. when We IN
troduce a new scale. a traveller, bring
Ing a little ornamental plant In a pot.
may unwittlngly ruin a great horu-
cultural industry. Most Of the worst
scales are general feeders. and are liza
Die 10 spread from garden or even hot
house plants 10 orchards.
Climatic barriers cannot always be
trusted. The rapid spread Of some
scale insects shows that hey can en-
durc great differences Of climate While
the climatic barriers to the spread Of
some species are real and Important
u will not DO to trust too much 10 them.
Il IL probable that the very rapid re-
production OF eoccidae enables them TO
quickly adapt themselves 10 changes Of
climate. through the survival Of the Mt
test. Thus II there are n million scales
IN an orchard which Is touched by frost,
u only one gravid female survives Il
will suffice TO eventually restock the
orchard. and with comparatively
irost-prooi race. BE this as Il may, the
poash scale. Diaspis amygdali. flourish
"a equally at Washington. d. C.. and In
the tropics: and many others could be
cited which endure great differences
OF climate IN different parts Of :hClr
range.
Il will now be useful 10 consider the
countries from which We are liable 10
be Infested From Europe We may ex-
pect many pests Of shade trees and de-
,iduous fruit; trees especially, For eX-
ample. we have already received the
maple Phcnacoccus. the elm Cosy
paria. the New York plum scale tso-
called. the Lecanlum hitubercuiatum
etc. II must also be remembered that
semi-tropical scales may and unqucs'
tlouahly do. spread by way Of Europ-
can hoi-houses; 80 tais way, for eX'
.gmple. Orthczia lusiruis. a destructiv,
West Indian species. was undoubtedly
introduced into Coylon.
From the West Indies and Mexico
countries We may expect especially
pests Of citrus fruits. OF cotton. sugar
,anc, etc. also the peach scale. niaspii
amygdal. which has already reached
this country. 4 further exploration Of
Mexico and most OF the IVES, lndlar
Stands Is urgently needed. 10 determin,
The kinds OF insect pests there ocrur
ring. From Japan. perhaps. We stan,
IN most danger. The climatic condi
lions permit the growth OF the SAM
species Of fruit trees a. are grown u
America. and Of late japanese varieties
have become very popular. and hay,
been imported IN quantity. The pcacl
scale. Dlaspis amygdau. Is common u
Japan. and there are many other In
furious species. Unfortunately. ou
knowledge Of japanese scale insects 4
yet In i,s infancy. and someone ough
10 be sent there Tor year 10 study th'
subject on the spot Some injurlou
species may also come from Australia
New Zealand. the sandwich Islands
! and Ia fact any place whence planu
! are brought. Especial care should 4
taken TO prevent the introduction o
Asterolecanium pustuslaus from IN
Sandwich Islands. Il already exists u
Florida. and Is common also Ia a,
West Indies. II especially iniests ole
AEder.