32 
At this time, or preferably earlier, it is important that the solana- 
ceous weeds in the immediate vicinity of the field, and particularly 
the nightshade (Solanwm nigrum), the horse nettle or bull nettle 
(Solanum carolinense), and the jimson weed (Datura stramonium), 
should be cut down, with the exception of a few marked clumps. 
These clumps will act as traps for nearly all of the tobacco insects. 
Practically all of the tobacco insects in the vicinity will be attracted 
to them and can be readily and economically treated with heavy doses 
of Paris green for the leaf-feeding species and with a spray of kero- 
sene and water for the sucking bugs. Large numbers of these insects 
can be easily killed in this way, greatly to the protection of the young 
tobacco plants when they are set out. 
During the growing season of the plants in the field there can be no 
doubt of the availability and usefulness of the arsenical spray. When 
used with reasonable care there can be no possible danger, as has 
been shown by careful experimental work and by chemical analysis 
of sprayed plants. Poison distributers, both for dry and liquid 
poison, are on the market, and the process is not an expensive one. 
It is used already by many practical growers, and it seems to the 
writer that the man who does not adopt it in time of necessity is 
behind the times. 
After the crop has been cut the stubs of the plants and many leaves 
will be left. Moreover, ina warm autumn there will be considerable 
suckering. All of the tobacco insects left in the field which can by 
any possibility reach this sparse remaining tobacco vegetation will do 
so. Most of the horn worms, it is true, have gone into the ground 
and transformed into pupx, but cutworms, budworms, leaf-feeding 
caterpillars, the last generation of split worms, all of the sucking 
bugs and the flea-beetles, during the warm, sunny, autumn days 
which precede the first killing frost will rely upon these remaining 
leaves and suckers for food. This is apt to be just the time when the 
tobacco planter pays no attention to the insect question, since his crop 
is gathered, but it is nevertheless just the time when he has his 
tobacco insects more or less concentrated, and upon worthless vegeta- 
tion, which he can treat with heavy doses of arsenical poisons or even 
with pure kerosene without fear of loss. There can be no doubt that 
a little insecticide work at this time of the year will so greatly reduce 
the number of the insect enemies of the crop that the benefit will be 
felt in a marked degree the following season. The expense of such 
treatment would be very slight. A single individual in a day could 
cover a very large field. 
Two of the points just mentioned, namely, the use of solanaceous 
weeds as traps in the spring and the treatment of mutilated plants and 
suckers in the fall, have not previously been mentioned in any article 
upon tobacco insects as far as the writer is aware. He believes that 
both suggestions are eminently practical, and that by their adoption an 
enterprising tobacco planter can reduce insect damage to a minimum. 
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