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Wisconsin State Horticultural Society / Annual report of the Wisconsin State Horticultural Society for the year ending July 1, 1921
Vol. LI (1921)

Fluke, Charles L., Jr.
Insects in everybody's garden,   pp. 52-56 PDF (1.2 MB)

Page 55

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hours. Remember carbon bisulphide gas, mixed with air, is
highly explosive. Keep away from all lights, fires, and sparks.
After fumigation put the beans into a tight container and
place in a cold room or attic. This method will keep down to a
minimum the weevils that so commonly make holes in the beans.
If you have flowers in your garden, apply the principles stated
above, using nicotine sulphate (a tobacco decoction), about 14
teaspoonfuls to a gallon of water for plant lice such as the green
fellows that so often ruin sweet peas before they have a chance
to bloom. Dissolved soap should always be added to nicotine
sulphate sprays, about an inch cube to every gallon of spray.
This makes the material spread and kills the insects in greater
numbers. If worms are chewing the leaves, use a spray of lead
arsenate.                                   .     J T
If you have currants and gooseberries in your garden, it will
be necessary to protect them from the worms by spraying with
lead arsenate, one rounded tablespoonful to a gallon of water.
This isn't as strong as for potato bugs and cabbage worms since
the currant worm is more easily killed.
There are many more insects that we might talk about, but I
believe I have touched upon the most important. In conclusion
let me summarize: Most chewing insects are killed by spraying
with a poison such as lead arsenate. While it is impossible to give
accurate measurements of material by volume we have found that
if the poisons are used at the rate of 1 or 2 rounded tablespoonfuls
to every gallon of water the best results will be secured.
Sucking insects, such as plant lice are killed with a contact
spray; the best of which is nicotine sulphate, using 11/4 teaspoon-
fuls to every gallon of water and then adding enough soap to make
the spray soapy. This amount depends upon the hardness or soft-
ness of water used; for soft water an inch cube of soap dissolved
in hot water is sufficient for every gallon of the spray; for hard
water, use more soap.
MR. FLUKE: In answer to that question, I rather doubt if it
will lose its strength, especially if it is covered. If you doubt the
strength of nicotine sulphate, take a spoon, dip it in the solution
and then hold the spoon under the faucet, wash off until you can-
not see any material on the spoon, and then just touch the tip of
the spoon to your tongue, you will be surprised how strong that

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