The Palatka news and advertiser. [volume] (Palatka, Fla.) 1902-1905, 1904-09-09
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che Tartn and Grove.
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CYANIDE FUMIGATION.
cp hHrdf ITsjS SpHWeaFe
II. {. STOCKBRlDGE, PHI. D., Editor.

N A. IlIl
~ daetrm,.i i",' nir1 ,o' W." haen
Iar%aIy Hr anS ,, uI'a ay ,,,,
tin5, - H. S,,, i,s,' .,,,Ia Is nv, far
thn nnet ,>,tnmsiy,. nga nf thrnrn.
,.,,s., NII.,. ,.,'+I,, ,,a,
hean usad for ,nrntsctimg ritrns trees
lrn,n tl,,,i, s,.r;,,,, ,,,.',i2, tha ,vLit,
| Hv
1has. t,yo ditFaraut uses of tha
Same nrinrinIe havp led tn consider
,,,I., ,.Lu, fn.i,,n ,yli,L, Lo. nftn,, "a
sn1taS in fnilnrs tn sarmra' yntisfnr.~
,n,,, rasnIf. mis- ,nnrn.inu a,,d
thn' roemItim,r d,.atisfo"tion mont
,n,,;l,, Nv, ,,,.,,,,a,,t,d NV, moro cIenr
n'dnrsta6diny If tEa cLangas vi !
tr..'t,nent mnc.ssorv hacansn Of thn
rr.,.t difraronce hetvaen the two oh
i,rts sonrht II will he NV andeay-
Or r., T1ila tLsee diffaramras more
nnnarart in thn hone that the causes
l"f on,ne failnrec NAV fins he nra.
vanfed
Tba first and most imnortant diff
foronca hofwnon The two objects nt-
temnted, lies in fine very unlike
.,,rocto, of tha two enemies attack
.d NV tha nrorass mo sr,le is not
onIT w .> W." roI tonarions If life huf
it ,.' yitnI nnrts nre nroterted nv nm al
MOST ininaryions and hprmeticallv
sno1o ' ndwari nous Th % royarinC or
sc ,' 10 naariT i,n,,an4trnhla to nil
li%nid snravs and washes, if even
nffers preaf resistance 70 the most
,,lnatr5tinw one Thie fact is fine
,,b ii,f rea.nn fnr fine GREATER ffrctivc-
, noes ,,sS or fmn,ignti0m tTnn of or,y snray,
There is another important differ
nnrn between tine two insects.
. Namely. The white fly is ALWAYS
-, nttacke cd in either the egg or the
r Iarvo stayp. In both of these condi-
! tions If is as ronuared with the
. scale, very susceptible to poisonous
&c sprays and gases. The cyanide gas
n is particularly effective at this time.
This difference in the succeptibili-
tv of the two insects to poisons, be-
r. cause of the protected condition Of
t the scale and the unprotected state
q of tine flv. renders one half of the
nuantitv of cyanide necessary for
killing scale. sufficient for eXtermi-
# nntinS the white fly.
# Citrus trees are often the host OF
- both of these forms of pests, scale
y and whitp nv FumlpatlOn, when
is nrnnarlv conducted is the most eff.
10 EFartiva nrotertiou and remedy
, for both. The Hv is killed
> hv one half the quantity o
- .Ty,n,da ranIIired for the scale
re ffha srale needs twice as much cyan
l. ida ~ JnuhIa fine time of treatmen
,I'u !; S,,giciont for fine fy. fire,
g 4, &c, oriyam .iga if ruInipafed for tn,
TX g., noods bnt half ne mnch cvanid,
ny needs put nan its lliuc., ~ "''i,',
or nall the time oI IreallllellI iteuV a.,
" by the same tree II treated loL ,liI
I'd scale. fof the saille le"S' ~ l' 'n,,,
,o trees ana 9ra'se "oe' W. OK i,sant
ld and the other by the larNa 9l CIi
I'd white fly, require radically oihere'l
40 treatment. ~,
' This is all very simple. me rae
o1 needs no further explanation; pU
he the attempt to tumlgate is oICe
~ made by persons who nave heNe
=, taken pains to investigate the iac'
III or principles Involved II lLeI MAJ
er pen to have had experience WIN on
nd kind of tree, or have fumlgated i'
,b one of the two purposes lof "il lc
i've theE KNOW ''lt ptTUoEfo +Lat det.ir
an adapted to one form OF apPilcdtl"
ed or quantities and time of application
an and durati m successful III one Gas
an is equally adapted to the othe
They proceed on this supposltloi
,h- and failure is the result.
~, If interested persons Will hrniI
'"- fix in mind the ia t that the VIM
my Hy reouirps only one half the punls
'" meu' 'lTe"'I ~; ~, nnn.es for unsati
tn one vi tlIS INV viii Gi.,,nnpar.
~, For the white ny M. me "pPt a1,'.
sic, amount of cyanide is. SO OF an oun
re- Cor Inn rubic feet OF space TO pc NIT