St. Tammany farmer. [volume] (Covington, La.) 1874-current, 1892-03-05


west In the west It Is reported more
frequently from Illinois. Missouri.
iowa, Ncbraska and Kansas. in most
Of which states the soft maple il in
.ligenous. fact which accounts for the
excessive multiplication Of the insect
there as compared with the more east.
eEn sections Of the country. Il feeds
ON other naples and presumably on all
speeies Of the genus Aeer. and when
forced TO from necessity will feed ON
oak. though nominally never found on
that genus Of trees. and probably In
capable Of full development thereon
The eggs are deposited BY the parent
moth in batches Of thirty and upwards
ON the under side of lesvcA The egg
i about o.os Of IN inch long. subovsl.
AAsc'lv dattened, pale grceoish. b.
coming yeh.-as& and showing the
black head Of the tncl0sea l.rve inst
before hatchinR. and il hafches =
eight or nine days after being depos-
.ited.
|. The larvD undergo four molts and
reach full growth in about . month.
when they enter the ground and trans
from to pupR The worms (a) are long.
.itudinslly striped with pale and dark
green lines. and arc chiefly distin-
.guished BY two anterior projecting
by having segments 10 and II . little
-dilated and rose-colored at the sideA
The pape ~ = Of . deao Nswe- Or
black coler. Sos30u6A I'd -
armed with curved Awn S. y
about the anterior extsen61V - -
on the last Joint, which teyuonG 10.
long forleed projection. Tho pop =
the first brood give forth the perfect
insect in fourteen to sixteen days. those
of the second brood usually winterinG
over in the ground In the west there
are usually but two broods in the year,
but three broods are occasionally pro-
duced The pupa, before giving ont
the Image. works its way to the sur.
lace BY the aid Of its spines. allow.
ing tine ready escape Of the moth. The
moth Il Of pale yellowish color shaded
with pink. - in tho figure (e) which
represents the female. The male has
= smaller abdomen and broad eomb-like
rntennO. Different specimens vary
greatly-the yellow predominating in
western and the rose-eoior in eastern
specimens. while others again. especi-
ally from the west are nearly white
/. Parasitic insects very enectually aid
in the control Of the worms. which in
fact seldom occur two years in success
sion in injurious number& Spraying
with paris green or London purple in
the proportion Of one pound to lss to lss
gallons Of wster. a soon as the young
aarve are noticed, or . week or ten days
after the moths appear in the spring.
ts at once the simplest and most effect
i've remedy. II the larve have been IL
lowed 70 reach full growth 20 that
spraying will Be Of NO use. groa1 num-
,bers Of them can be entrapped and
easily destroyed. by digging . trench
Either around tho individual trees or
GROUND the groves or belt The trench
should be at least . foot deep. with tho
outer wall sloping under. The larvo
usually wander from the trees before
entering the ground. and will eolleet
in numbers In the trench or bury them
selves in the bottom, and may then be
easily killed Their numbers may bc
reduced also BY keeping . sharp look
out for the moths and eggs during the
latter part Of May. when both may b
destroyed in large quantitieA-Orange
Ju1d RnrmeH