POF SCHOOL AND HOME GARDENS 
How TO PREPARE CoNnTACT INSECTICIDES 
Kerosene emulsion. In half a gallon of boiling water 
dissolve a quarter of a pound of hard soap shaved fine. 
Remove from the fire and pour in one gallon of kero- 
sene. Shake the mixture vigorously at once or churn 
it with a spray pump until a creamy emulsion is formed. 
For summer use add one part to nine parts of soft water, 
or one to seven for winter use. 
Kerosene and milk emulsion. Sour milk, one pint; 
kerosene oil, one quart. Warm to blood heat and mix 
thoroughly. Dilute twenty times with water. 
Carbolic acid emulsion. To one pound of hard soap 
dissolved in one gallon of boiling water add one pint of 
crude carbolic acid and emulsify by shaking vigorously 
or churning with a spray pump. For cabbage maggots 
and other root insects use one part emulsion in thirty 
parts of water. 
Whale-oil soap. Dissolve half a pound of whale-oil 
soap, Shaved fine, in one quart of hot water; then add 
five gallons of cold water and apply it with a garden 
sprinkler. A thick solution may be smeared on the 
trunks of trees to keep worms from crawling up. 
Soap solution. Dissolve a quarter of a pound of soap 
in two gallons of water. This may be used for plant 
hice or for scale on house plants. 
Lime-sulfur. Slake twenty pounds of fresh-burned 
hime; add fifteen pounds of sulfur. Boil in twenty-five 
gallons of water for one hour. This spray must be used 
