New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1875-06-28
R1VAGES or TIE POTATO BUG.

Irs APPEARANCE IN WESrCHESTER COUNTY AND
NEw,yERsEY-HOw IT CAN BE DESTROYED.
The Colorado beetle, or potato bug, whose
rayaccs have been widespread and destructive In
various portions Of the Western States during the past ID
wears at last beginning appea. In large Numbers In
the vicinity OF NcwYork and threatens to work great
injury TO the POTATO aud other crops That the beetle has
been travelling Eastward was long ago apparent yet no
general efforts made to check Its progress me bug
belongs to the beetle family Co,eopera and known as
the Doryphora 1Oeneata 10lined Doryphora, having
10 black stripes running along and marking its wing
cases. The bug Is about twofifths OF an inch long and
has n yellow body. Its head Is marked with q biack
triangular spot The thorax OF the insect has two snort
cned black divergent lines with six black dots on
eoch side The wing-cases have five black lines each
The beetles hybornae under Old rotten timber In grass
or Inn themselves deep in the ground whore they re.
main uuring the Winter, waiting for The approach OF
spripg IN warm weather they come out and begin her
ravaxes They flourish best potato vines but they
also feed tomato vines. egg plant &C. Ihey multiply
with mpdity The eggs are deposteb BY the
female on wherchey hachou In cw davs
The Larvae or small gruis Immediately begin TO ccd upon
the leaves The color of the grubs il pale yele which
ronidlv changes to orange aud then to vermon red.
As many as 900 1000 eggs are laid at 'me by
single insect and there are three boods pfodhced Ill
single season. The young become fJy developed III
1 DAYS and then pass into the ground III me Ia STARE
coming back again az true beetles in abOnt 10 DAYS. TO
snrv be rapty OF their multiplication, IL las been est
mated by a wClmoyn entoniocgst thht II Single PAIR
is allowed TO without medication for an entire
season the result would he over GoOCOooo beetles.
The insect first discovered DURING TIE Irt quarter
Of the present century In the eighbohDod OF Tie kochy
Mountains. II described and classified ny me early
American Entomoogst THONGS cay = con- ~ NJ
nrppd in the Proceedings NJ thc Acaucmy OF Natnihi
Sciences of philadelphia, Volume Ill ls2 Al was net
mill sci Thai its ravagcs became matter Of serious
concern: once obtaining decided foothold, however,
ts trngress eastward rapid and destructive. IL
reached and crossed Mississippi IN 1862 and Last year
appeared In small numbers III various paris " NV,
Jersey and New York. This Spring II has appeared IN
large numbers In WeStcheser ana Kings counties Oh ns
state and in the adjoining portions or NewJeisey Inc
danger from this source seemed 10 excite alarm Ill
Frope last wear several OF the governments tere
nassrd laws forbiding the importation OF American
rotatoes by means which IL was wrongly assurcd the
irg would he prOpagated. -, . .
In REGARD to the methods for suppressg the scourge
fow words may be SAID. Tie picking Of the bugs from
The vines il soinc peIous there Is danger oi
pOisonug the bugs Sealung the bugs l. 10 Dc.'
s there II the danger from u ON atrot oi nc
volatile nature Of the poison contained IN th insect ne
hest aud only effective or dealing WIN INC Dcctcs ~
Ia sir.w the plants with Paris green, mixed IN ccftnm
uropurtious with other substance % The Naici
OF Paris green sold not equal IN strength ows 10 '
adulteraOn Of the substance Win cheaper anu IhiIA
ions substances these proportions viii vary. Two Tor
ul;r are appended showing certain ad1Atures with
have been found effective, the PARIS green Dein3 'h
sfaudar article manufactured by r. W. DeVOo anu 90 Oh
Nos. Us and III fulton-s OF tins cty. or, arabic
l. Paris green, one pound; powdered gum ARABIC,
slippery elm" deXtrinc, oDe-half pound nour,
hounds Mix we'll together, the green and gum arabic
first, then adding the flour. I'm, s AM,
water added carefully and sufficient To make about 20
gallons. f., A.. ~, s,.,v,, over thc vine.
by any OF the means In use fUf such purpOs' ~ po
,.n demonstrated that the poison does not, when APP
piled in this way any bad influence on tho veg
,tahle.