Rocky Ford enterprise., 1900-05-25

CANTAIOUPB BLIGHT.
Soc. ,sis OF Experiments and Results Looking
Toward Its Control.
BY SI'rT. II. II. GRIFFIN.

The cantaloupc growing industry has
grown Ia large proportions. The grow
crs OF this delicious fruit have settled
upon the Melted Gem variety n I'll"
on. best meeting their requirements,
AMI IL ias l--n ~ perfected through
environment thar II j. now known ana
sold by most seeds men ns the Rocky
Ford canlalouIc. t'ntii Of late III.
industry has moved along ai rapid
pace. little disturbed 10y insects ar plant
Diseases. Rut |, Il often III. cH>. where
cru.s OF tender Ioilas, ar. grown IN
abundance that insect or plant diseases
Increase until measures iiiv. io br TAX
.ii Tor their control.
From tl,. best Information ! rln Sc,
cure II s.-n- III. blight ,or rust, WIS
tirsi noticed upon u Few patches four
years ago TIL. past season. occurring
hut slightly Ia two or thr- localities.
The next year Witnessed nh Increase
af ihI. disease. hut NOR. particularly
uipun ih. same fields. ! mn familiar
with ih.. -ra-on of i>'s> nnd know that
IL virtually destroyed u few canini"ui'.'
fields. The disease was largely confined
ta the same ios7sii,i.-s n formerly. nni
II. spread was net sufficient io cause
much alarm.
The pu.t year. however. Witnessed u
vas, extension of the disease. Hni Ill"
severity with which II at'n-k.>i the
plant wa. much sTra'.r. u l. ni-" u
inci that ihi. ,ii.rns. ha- spr'sd fF"in
u few well defined -rn'-r..
W. noticed how II gradually grew
l.s. and less tht. year n- Ne. rs-i'i
fr,m ih-.- c,'ni-r. until ~- r,nci.'i q
ii.ianes wi-T- IL hu' slightly Appeared.
Many point. Ia the valley r'i-'rt -" IN
a s,t ttsts
.iissa.r is uot caused by any isnEfi-ti'
lar .aii conditions. m"'i- "r Irrigation
Ur I-Criinriti.s of climate.
The station t-'.nn .. investigate this
question in the s.as1n of is'>s w"
sent so,ii. stpsrin-n. e. Professor Gran
dali for -xaniination. lie prnnouiic,-i
the sr,iuiii.. iti- I. n TunEutis 'iiiact"s'
t.,,iu,ui hu, ~. the .,-st.- ..-'nss>i Ia
l.. a new oii. it~ s-'tg the si-eciui-n. u"
M-..r.. Ellis n ES-fhnTt of New Jet
..y. They reported tile .f-.i'-s new
snr ani named l, -ti-JinI-riuiil. J ni'
.., .s,up~I .--,i fEum diseased iu-i"n.
for piau,inr In ,Ss,. the "ljsvi of
which va. 4. -. n the dis~s.-' wa. 10
sny way communicated hy ii'- -r,,i.
Thrs- rows. .,sCh 80 s--s i.nr. wrrS
Planted to the s-v,i May u. iS's' ih-
urI,iil. vtc uf th.s- We .rsay-i WIN
ilar,iTauS inixtuTr ic t--i ". sihracs
a.. q rrvy-n'iSr. ar .i,"uii the dis"n-c
us,ttr, for II. control The Wins Er-w
well. an.I a, tisr iiiH- II tbs fir~i spray
ins, June .s.ui. ,t-rr was ~ aTI-ar-
s,,,,. Of ,b.s liisht. The Sin.- wrtc
again sprayed au Iunr .,sh. at which
,iu.. We made th- following NOTE
'.S.,,u-,h;us "u ,is.' l-at.> that iss'ks
like tiigb'.
t'rvviau. ,a tile 18th of June ill- w'ss.
,I,rr hal t-r-u Scry 'lEs. =. that had
,hrgy t-ru ans inf..rti"u. u u i'r"'s'hi.
IL. stEyad wuvl,i n-, have i--t rapid
enough 10 have i-'suui. aIiarrti. Etnin
this time uiuisurs was quite Il,n'iiul.
s.yyu inches pf rain falling during tlI-
ttu,,th 1f July. In the vc'E cptiiisrti''.
Ing lis. ia,h thrcr heavy Taius .Cut-
nj. tivr ani pH.auuart-T iH-ltss 81 rain
falling. These rain. wrtr "i surh
magnitude atl.l fell in such a -lt"Tt
stay,. II time n. i1 sui'm"Te,' the Nin'--.
aud could n"t fail ir wash "n ih~
.prays
Thr third spraying was July s.ii.
NJ which lime tll., blight wus -truueiy
in .vi,i.nsv. pu the ais, the new
r,yu,b was sprayed. aud ON august
ii,b W. SPRAYED the growth made at
,rr tb.. gtsi Two ani twenty-five" hun
dr,.,,b- incIs- uf rain fell in Nuxu-'.
and ,I.ws v-r,s prevalent y jccii"J
I-.u-ti, was ~EvuTC,i from the sI'Tayinrs
u,s,i. after III. ysHd ~ July ~"
spraX-,l yju,-s held VT comparatively
v,Il: the fruit was nf syS-i quality.
.rb. ,u.,aps OH the unsIrays-I Wines rip
,p.,I prrmniurriy: they w"rc iusirid.
,n,i ti,,s taste was sufficient g. di>-'cru
fTum which vines the u'cI"us wcrr
,,,rs-,t Tt, sprayed wines rcisIaiT",i
green nu,l in a growing condition TON
two /. thr,'r weeks after ihc others had
su,-.uu,Iu.l The plants EuUvu iE"hh
this s,,,I ,lI,i mt scrIn t' y" m"Tc -h@
,rp,ilI~ To- the DISEASE ihan t-c
,,r,vu gruu <..d TAKEN frrm healthy
,,,,,nns TI,.. ,Iis.vls, was spreading
=, ,ai,iJiy guI affecting an Industry 81
=, ,,,,,rl IutvoJtan,ys. that other cNl-I-
iu,ru,s were iuauauraicVl ihc latter l'.'tt
~ IuIv ON y much NOR. extensive
Iii. The <;,rsii was very Huch
u,n,,, rapi,I than any unv had auitciIn'-
,,i I"T y ssvNyui experiment ~"Uls ms'
ni,u,,,i melons uIcn NT '. ". har
,,I,,.. anal two rows uu the Sia't"n.
.,s,,,iug Su alfalfa <oyl. were s'rUrs,ls
'Ti,- bJisbt was just showing Slightly
,,, ur IIaIr'S vines. while tBUS'' "n ""
sf,tf,u we're attacked quite severely.
Tic bordeaux and the ainnh"hla'',
,1u,..r yarIpuatr solution w"r'' us'h
,tit,u different vines ni Cach rl'''-
ri,,,., sura,inas NJ the Bor,lcauS wsr"
,,i,,,u. ,,,r first one Iuly 2Ith aud th"
iosi one August 18th. The rsTl"nHic
-, ,rs, uS,,l uu August Ith. nud three
later s,rayings were ma'lc. the last Que
Iyg,,st 18th TIivrr vCrr seven rows.
mon va t..,, long. Ur ihUsc "u we S'h-
H., Vbcr,, the spraying was d"i'".
'Ti,,, mu,b brurfii was derived from
the spraying was cvidcn, I" the many
,,b, ,i,.,rvryi II. The vines rcinninci
IN g.vI condition fully ten days after
liz others were gone. the melons ri',
,,,,.I sIuwcr and more uniformly nnd
y,r,, invariably uf bciicr uuauiy. iu'
N',. -, ,h., ttSg Df the carbonate