220 FEUIT CULTURE. 



adhesiveness. The Bordeaux mixture, and 

 other fungicides, are also added to apply in 

 one operation, where a saving of labor is de- 

 sired. A stronger mixture, to apply around 

 the trunk of trees to destroy borers, is made 

 with one ounce of Paris-green to two gallons 

 of water, and one pound of glue dissolved in 

 half a gallon of hot water to secure adhesive- 

 ness. 



London Purple is a by-product in the manu- 

 facture of aniline dyes, usually containing from 

 thirty to fifty per cent, of arsenic. It mixes 

 more readily with water than Paris-green, but 

 is often more injurious to foliage. It is used 

 in the same proportions. 



Kerosene Emulsion. — This is made by atom- 

 izing the oil so that it will mix permanently 

 with water, as follows : one quarter of a pound 

 of whale-oil soap, soft soap, or hard soap, two 

 quarts of hot Avater, one pint of kerosene ; 

 beat rapidly until permanently mixed, then 

 add six to eight quarts of water; pump this 

 back three or more times to secure a perma- 

 nent mixture. This proves to be valuable for 

 destroj'ing plant lice and scales, to be used by 

 dipping, or washing, or spraying. Another 

 formula is sour milk one gallon, kerosene two 

 gallons ; warm and beat thoroughly, then add 



