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even later, as the poison, under ordinary circumstances, disappears from 
the plants within three or four weeks after being* applied. 
Bran mash. — A mixture of bran with Paris green, a standard remedy 
for cutworms and grasshoppers, is, according to the testimony of those 
who have used it, successful against cabbage worms. It is best to mix 
the bran with water and sugar before adding the poison. The propor- 
tions are two or three ounces of sugar or other sweetening, and a suffi- 
cient amount of bran (about one pound to the gallon) to make, when 
stirred, a mixture that will readily run through the fingers. This is 
to be sprinkled either wet or dry upon affected plants. 
Kerosene emulsion has been used for many years against the imported 
cabbage worm, but is not as efficient as the arsenicals, because it is 
necessary for this spray to come into direct contact with the larvae, 
in other words, to hit them in order to kill them. 
Pyrethrum has been used for some years as a remedy against the 
common cabbage worm, and is of use against the present species. It 
has the advantage of not being poisonous to human beings, but is said 
by some cabbage growers to discolor the leaves, and if its use is not 
continued at frequent intervals the larvae recover and continue their 
destruction. It is therefore more expensive than the other remedies 
that have been mentioned. 
Mechanical methods. — For small gardens where for any reason it 
may be undesirable to use arsenicals hand-picking can be practiced and 
is of especial value when the plants are first set out. 
The corn-meal remedy. — Corn meal dusted on cabbage, according to 
the testimony of Prof. Lawrence Bruner, causes the worms of the 
imported cabbage butterfly to drop off and protects cabbage and other 
crops until washed off by rains. It is advised to apply it in the morn- 
ing while the dew is on. The meal acts as a deterrent. 
Clean cultivation and trap crops. — If cooperation in clean farming 
could be secured, together with the use of arsenicals, the losses due 
to the ravages of this as well as other leaf-feeding pests of cabbage 
might be largely averted. The practice of leaving cabbage stalks in 
the field after the main crop has been secured is reprehensible. Rem- 
nants should be gathered and destroyed, with exception of a few left 
at regular intervals through a field as traps for the females for the 
deposition of their eggs. These plants should be freely poisoned with 
arsenicals, where feasible, so that the last generation will not develop. 
Water as a remedy. — Washing the plants with a stiff stream from a 
hose is of value where this can conveniently be done. 
Hot water at a temperature of about 130° F. has been advised as a 
remedy against cabbage worms. Applied at this temperature it does 
practically no harm to- plants and destroys all insects with which it 
conies in contact. 
