134 The Spraying of Plants. 



CARBOLIC ACID AND GLYCERINE: 



Carbolic acid ^ pint. 



Glycerine 1 pound. 



Soap-suds 10 gallons. 



An emulsion should be made of these ingredients. Apply 

 against sucking insects. 



CARBOLIC ACID AND SOAP. An emulsion of carbolic acid 

 and a soap solution may be made very readily according to the 

 following formula, and the product possesses considerable in- 

 secticidal value, largely on account of the presence of the soap : 



Carbolic acid 1 pint. 



Soft soap (hard soap \ pound) 1 quart. 



Hot water 2 gallons. 



The soap is first dissolved in the water, after which the acid 

 is added ; an emulsion is then produced by thorough agitation. 

 It destroys insects by coming in contact with them, and may be 

 applied as a wash or in the form of a spray. It should be used 

 upon dormant wood only. 



CARBOLIC ACID EMULSION. The stock solution is pre- 

 pared as in the preceding, but should be diluted with thirty 

 parts of water before being applied to foliage. 



CARBOLIZED PLASTER. Carbolic acid is occasionally mixed 

 with some dry powder as plaster, air-slaked lime, road dust, 

 etc., and the two are then applied together. It possesses little 

 value, but the recommendation is to use : 



Carbolic acid 1 pint. 



Plaster or other powder 50 pounds. 



It is most useful when applied to plums which suffer from 

 the curculio. If it is used with lime, it is effective in destroy- 

 ing slugs upon all plants. 



CARBONATE OF COPPER. See COPPER CARBONATE. 



CARBON BISULPHIDE ; BISULPHIDE OF CARBON; FUMA; CS 2 . 

 This is a clear, colorless liquid, highly volatile and inflamma- 

 ble. The commercial article has a powerful and disagreeable 

 odor. The fumes are poisonous to animal life, and in this lies 

 the value of the liquid. Its insecticidal properties seem to have 



