The Marlboro democrat. [volume] (Bennettsville, S.C.) 1882-1908, 1906-09-07
WILL KILL THIN
NEW PROCESS OF DESTROYING
THE HoLL wEEviL.
A%nimalculae Are Killed by a Kind
Of Vaccination Of tho Cotton
Plant,

~ cubtCH turOuRnOuU GDe
United States a bulletin issued Wed
nesday by the Department. of Agri
culture on proliferation rs q factor In
the natural control Of the cotton boil
weevll, will prove an interesting and
entertaining study. Ploliferatiou is
the manifestation of q tendency Of
plant coils to respond to irritation
by multiplying or forming new cells.
This manuscript was prepared by
DR.. w E Hines, special field agent
Ii represents the result Of long study
OF the proliferation In the squares and
bolls OF cotton by means Of which 8
certain percentage Of weevil larvae
are killed.. 1t deals with o prsc5ical
statement OF the IF cot CT this form
tion Of loose tissue calls upon the boil
Weevil, based upon q large number o.
observations made by the bureau Of
entomology.
In order to determine whether pro.
liberation caused tho dehth Of larvae
by starving them, numerous expert
ments have been performed, mostly
In Texas with ktnR and other earle.
Ties of cotton that are largely planted
throughout the South. Uaha, ched
eggs and larvae just hatohed hav>
baen placed In the midst of masses OF
purely proli!erous formation, and
these have baen kept In a tight, moist
chamber and transferred to fresh mas.
ses Of ~proliferation g. frequently as
necessary to preserve proper c0ndi.
lions for the larvae. La spite Of thest
frequent transferrences and the some
what unnatural conditions necessary
1t was found that hut q small proper.
zion OF the larvae died. In Que serie,
or experiments eight very young lar
vac were plsced In fresh prolifcrou
masses. or theGe, one died on TIL,
frat day, but all others reached full
growth and pupated normally in from
nine to twelve days, having fed o,
nothing but proliferous material.
Pr%oliferation usually begins in tn,
layer Of the cells a6j lining the thin
tough lining Within each section Of tn,
boil. BY far the greater part or thi
formation prej c.s through the rup
ture made by the weeyIl in the tougr
lining and forms a rather hemisphe ri
cal mass protrudiDg from the inne
side OF tho carpet and pressing int,
The lCok. The formation sometimes
though not always, begins before TIL
Matching Of the egg, wh'ch may b
nnV q quit d 6Is,at &c, in some casep
ny tho pressure Ct the mass behind 1t
L othsf caSss the egg becomes ell
} vcloEod sid ,bs larvae hatohes int,
Giie pr0l!fe:ous mas4 In such cases |
nay be dcatruy ed early in lefe, though
IL Will often make Its way into tn
lock, eating Its way as 1t goes. AS l
!eaos, n larvae Is continuously injur
ing n Irritating tissues capable o
prolifetatipn, which thus become
started al! rCuad tie larvae and grad
ually pushes upon 1t from all direc
tions. 1t may happen Ia this way tina
5he sp2ce which tie larvae has eater
nut as IT grew becomes filled by th,
masses Of cells pushing 1t upon AM
larvae can not poss: bly, eat away ia,
forming mass rapidly enough to PIE
serve room for itself to move. Though
1t may be nearly or quite full grown
10 can not escape from It's narrowin,
prison n soon becomes so closely. en-
yeloped as to be unable to move In an
direction. 1t Is then an easy victim
or The relentless pressure of formln
cellN ano is literally crushed to deaf
In Its p-'son.
ln ell caaes. whatever the stimu
ant, ore 'ao;ot 10 uA~ifornally esaer
tial. There musb be q cell iljur
"l:ca Ia not suhi GENTLY severe {
o.t.come I'm mediaJeiy the vital fore
= OF the Il jured oig 81 or tis, US. Prof
lci&ll.n 10 silnliy tne Ma~AIfestatio
ol d tendency If piano cells 20 respon
10 iJfitation by II ulticlying or form
ing new celI. Ii Id simply a metho
OF self.defense, and In the case of co
Ton, the Irritation Gppears to be /
hea''J al C",e> SIR ctly L echanica
me suAc lou CT pfollioTation In mos
cases Is undoubtedly to repair an /,
jury. PfUlif, ryus Tissue ia not tox
: % wsSS!ls. Death results In mos
O c.Sds III d mechanical way from simp.
pressure.