236 GARDEN PROFITS 



This is the equivalent of one ounce of the paste. 

 You may use double this amount if desired in the 

 case of resistant insects, such as the potato beetle. 



KEROSENE EMULSION 



For most sucking insects, especially the soft- 

 bodied ones, such as plant-lice or aphids, a satis- 

 factory spray is to be found in kerosene emulsion. 

 It is not a poison, and is of no avail against such 

 insects as the potato beetle; nor is a poison spray 

 like arsenate of lead of any use against the sucking 

 insects for which kerosene emulsion is adapted. 

 The distinction should be clearly understood. Kero- 

 sene emulsion is a contact remedy. Paris green and 

 lead arsenate are stomach poisons. 



Standard Formula. In making up this spray 

 mixture on a large scale the proportions call for 

 one-half pound of hard soap, one gallon of water, 

 and two gallons of kerosene. The soap is dissolved 

 in the hot water, the kerosene is added, and the 

 spray-pump is used to churn the mixture violently. 



In Making Small Amounts. Cut from a cake of 

 common, hard soap a cube about one inch square. 

 Take one-half pint of soft water; one pint of common 

 kerosene, or coal-oil. 



Pour the half-pint of water into any convenient 

 vessel holding a quart or more, in which you can 

 boil it. Shave the soap up fine and drop it into 

 the water. Place the vessel on the fire, and bring 

 the water to a boil, stirring to see that the soap is 

 all dissolved. 



Remove the vessel from the fire and, while the 



