Blackfoot news. (Blackfoot, Idaho) 1891-1902, 1901-05-01
FARM AND GARDEN.
MATTERS or INTEREST TO
A0RicULTuFisTss
sems up-so-D.ss Hiats About c.'sis.-
,sca Of ths SOIL and yieias rhsrsef-
Horsieaitars yitieaitars ssd Fiasss~a
surs1


full production of celery In this stAts'
/. The disease known az Rust or Blight
This disease Ia produced by q tansss
that attacks the leaves and stems eans-
ing them 10 assume yelloslsh color
with brown spots scattered owes them
that increase In sizs, until the anest1u
laavas and stems die. II the conditions
are favorable for the development OF
the fanxus the leaves will become al
testea 80 rapidly and 10 such an 81
tan, that the life Of the plant VIII DS
DESTROYED. II the conditions TOT tug
dayslopmsn. OF the fungus are less taf-
orable, only the outsr leaves VIII ais'
while the newer leaves viii he pnt PAT
TALLY destroyed. Tbs result VIII %
small plant 0f inferior quality During
the past two years the rust has oven
40 destructive In this state that hum-
Der of growers have abandoned ths
raising OF this otherwise satisfactory
crop. There Ia no naed time Tor the
appearance Of celery rust. but y 10 W.
ualiy 10 DO seen after drought "
longer or shorter duration. followed
| by warm. damp weather. II must DO
| remen bered that thess weather eonai-
| lions alone will not produce rust, nat
/ that the fungus spores must DO pres
/ ent before the rust can make tts ap-
| psarance.
In combating the disease therefore
Il Ia necessary either To produce hc"s
conditions under which the spores can
not terminate. os 10 spray aoms fangi-
eide upon the plants that will destroy
the spores or al least prevent them
from terminating In order 10 deter
mine which method % procedure
would be best. and for the purpose u
finding a satisfactory rwmsdy Tor tho
celery rust. a numbsr Of experiments
were undertaken on the coslvsr
grounds From pa!t OF one OF ths
celery beds four plats Of about aaaAi
size wers laid on and treated an foi'
lows: No. | was shaded, NO, : was
sprayed with Ammoniaeai eareonAts
OF copper. No . was sprayed With bor'
dsaux mixture while No vas ists an
treated for comparison. In saadinE
No framework Is Inches high
was built over tho plat. and over thls
framework. was spread single shIek'
meas OF muslin which was Ion In place
during the hot season 81 July and Al
gust, and was removed only 10 wofs
ths plants
The ammonlacai carbonate Of cop
per ussd In No. waa made By placing
one ounce ot copper carbonate In lus
enough ammonia water to Dissolve i
= and then dilutinE to aims gallons ~itt
ordinary veil water. Thf amount o
ammonia water required pr ounce q
copper carbonate. wns about one hal
, pint which was diluted TO two quartz
before the copper carbonate vas places
!, In II. in plat No J, ths BORDEAUX miS
:, turs uasd was the ordinary strength
/. and prepared from atuek solutions
These solutions wore applied with th
:. aid OF knApsack spraysr.
The treatment Of the celery was no
begun until the rust had made It's az
pearancs. hence the leaves that ha
!, been attacked died IN spits OF u
treatment, m ~as expected shown
- that the measures used must be prs
:. ventivs and not curative. and shout
y therefore be begun before the plant
- are attacked. Some OF the leaves tbs
= were not diseased before shading b,
y came affected after the shading wa
done. tgt the plants we're In niue
" better condition than those in plat
" which received no treatment. The an
moniacal carbonate Of copper and u
, Bordeaux mixture both kept u
II healthy leaves free from the attach
II OF fungus, but the plants sprayed vi,
III the ammoniacal carbonate seemed
III make a better growth than tho
II sprayed with Bordeaux fniStur
III Whether the growth was retarded
II the Bordeaux mixture or fastened
III the Ammonia solution II was lmpo
III slble to determine. All the plan
III sprayed lived. while Of those not trea
Ill ed about one half died and the renal
III Ing half we're smaller than the treat
III plants owing to the constant alta,
III OF the fungus and the consequent 10
IL Of Leaves. The conclusion Ia thereto
HI that the rust may BIO satisfactory
III controlled by spraying; that ann
III niacal carbonate promises better I
II suits than Bordeaux mixture. and n
III shading, as used in these tests. Is on
Ill partially successful in preventing c,
All cry rust.