222 FRUIT CULTURE. 



jar of the cane will cause a little cloud of the 

 powder to escape from the bag as it is held 

 under the currant bushes. This work is best 

 done when the dew is on. The powder may 

 also be mixed with water, a teaspoonful to 

 three gallons, and then applied lightly to the 

 bushes with a whisk broom. Watch for the 

 first appearance of the worm, and also for 

 succeeding broods. They are easily destroyed, 

 and with care may be exterminated from the 

 garden. 



Pyrethrum, or Insect Powder, is effectual 

 against thrip and leaf hopper, but it soon loses 

 its strength in the open air. It may be applied 

 as hellebore. 



Potash Wash. — A lye made from" a bushel of 

 hard wood ashes to twelve gallons of water, 

 with an addition of sulphur, makes a good 

 wash with which to paint the trunks and 

 branches of trees to remove scale and other 

 insects. 



Blue Vitriol (copperas) is recommended to 

 pour on the roots of trees infested with insects. 



Bisulphide of Carlon is a very inflammable 

 chemical, the vapor of which is very destruc- 

 tive to animal life. As it volatilizes readily, 

 it is used to destroy phylloxera of the grape 

 and other root insects. It is applied by pour- 



