10 



of water. Pyrethrum is very useful for killing the cab- 

 bage worm, or insects destroying parts of plants that are 

 ready to be eaten by man. It is also of great use in 

 clearing rooms of flies, musquitoes, &c., and fleas and lice 

 on domestic animals. 



Kerosene Emulsion is perhaps the best substance to be 

 used for sucking insects. It is made as follows: "Dissolve 

 one half pound of hard soap in one gallon of boiling water, 

 and while the liquid is still hot, but not near a fire, add 

 two gallons of Kerosene. The whole is then violently 

 churned until it forms a creamy mass, which will thicken 

 into a uniform jelly-like mass on cooling, and the oil re- 

 mains incorporated in the mass, and will not separate or rise 

 to the top. The churning can best be done by means of a 

 force pump with a small nozzle, pump the liquid back into 

 the vessel containing the liquid. The emulsion thus ob- 

 tained will keep indefinitely." AVhen ready to use, thorough- 

 ly mix one part of the emulsion with nine parts cold water. 

 This is to be thrown in the form of a spray on the plants 

 by means of some kind of a force pump and spraying noz- 

 zle. (See machines. ) 



The kerosene emulsion will injure no foliage, and since it 

 kills insects by contact, it is the most effectual remedy 

 against the chinch bug, plant lice, bark lice, melon bug and 

 other sucking insects, and also for the cabbage worm, and 

 white grub, and will even kill eggs in some cases. It is of 

 the greatest importance that the emulsion be forcibly, 

 thoroughly, and evenly applied, as can be done only by the 

 use of some force pump arrangement. 



Carbolic Acid Emulsion is made by adding Carbolic Acid 

 (the crude material, dry to get a good strength) one part to 

 5 or 7 parts of the soap solution similar to that used in making 

 the Kerosine Emulsion. The liquid is to be churned in the 

 same manner as the Kerosine Emulsion, to form an Emulsion. 



