The Colfax chronicle. [volume] (Colfax, Grant Parish, La.) 1877-1981, 1886-10-16
the cAssAce WORM.
Experiments with Dinerea. Rem edies Tor
This Destructive Pest.

This Destructive Pest.
The last annual report Of the Ohio
Agricultural Experiment Station con-
tains the following record of expert
ments with various proposed remedies
for this pest:
Experiments 1-5.-Dry bran, salt
(both coarse and fine), lime, sulphur
and white hellebore were thoroughly
applied at different times and under
various conditions. None Of them
proved effective.
Experiment Cone poDpa OF whale
oil soap boiled in one gallon OF water
and diluted with three times its bulk OF
water, was applied with spray pump.
Several applications were made. Many
Of the worms were killed, but enough
remained to seriously injure the crop.
This remedy, although safe, can not be
recommended as specific. Preparing
the solution some time before using and
allowing it to become more or less
putrid increases its efficiency.
Experiment g. Ice water was
Thoroughly tested 1t was applied at
Inherent times, but as rule did little
or no good. When applied during the
hottest portion of the day it dIslodged
some of the worms that happened to
be ON the outer leaves, but failed to
have any lasting effect upon those more
in the center of the plant Worms
we're seen to rapidly recover after being
completely immersed for several Sec
onds in ice water.
Experiment 8--One-half ounce Of
pyrethrum to fifteen quarts of water.
applied with spray pump, having q
cyclone nozzle, proved an almost per-
| feet remedy. Only one application
was made. Although few worms APP
peared subsequently,, they were not in
sufficient number to do any special in
jury.
Experiment 1O.-Used in the form OF
powder. with small bellows. one
ounce of pyrethrum proved sufficient
for one hundred and fifty cabbages.
Twelve hours after the application was
made. a careful examination showed
that no live worms could be found.
No further application was found nee
essary. . .Fe2 flsYs ~, 4, q
| Experiment. Il. One ounce of pyre.
thrum and one ounce of fine air-slacked
lime were thoroughly mixed. Thil
mixture was applied in the same man
ner and same quantity as noted in Ex
periment 10. The results were equally
satisfactory and the application less ex
pensive.
Experiment 12.-Onc ounce OF Ply
rethrum with four ounces of buck
| wheat -four was found to be very elm
Gent. The mixture was carefully
made and applied with the WoodasoI
bellows. The work was done yer.
rapidly, one man being able to thor
ou0hly sprinkle at the rate OF three
acres of cabbages per day. This wa
the most practical remedy tried. beinl
efFectual, cheap, easy of application
and harmless to the plant.
/ Experiment. l3.-Onc part OF Paris
| green thoroughly mixed with twent
Il 6arts of fine slacked lime, was nearl
, a effective IS pyrethrum. This va
suplied August IA, before the cabbage
i hsd begun TO form heads Aitnong
/ Il proved eiI6ctual, the danger Of us.n
i Paris-green upon any food plant make
u IL : remedy that can not be strong!
| reCommcnded When used at all
treat caution must be exercised.
Experiment 14.-Ker0sene emulsion
Of various strength were CAREFUL
tested. The results were unsatisfact'
". Equal parts Of kerosene and wat
! EiIlthe worms, but at the same nm
Il nearly ruined the cabbages- Weak
applications affected the worms Tor
short time, according to the propornt
q of kerosene used, but they usually =
} | vived and continued their depreciation
! Farm and Fresids-