INSECT PESTS 245 



Remedy As soon as the small holes begin to 

 appear in the leaves the bushes should be sprayed with 

 powdered hellebore, one tablespoonful to two gallons 

 of water, or Paris green, one teaspoonful to the same 

 amount of water. If a large plantation is to be treated 

 the bordeaux mixture should be used, adding Paris 

 green, one-fourth pound to fifty gallons. 



Currant Plant Louse or Aphis (Aphis ribis) 

 Many seasons the leaves of our currant bushes curl up 



Fig. 131 Currant Worms Eating; Leave* 



and turn to a reddish-brown color, when upon examina- 

 tion we find a mass of these lice feeding within the 

 curled leaves. 



Remedy As with the other aphides the time to 

 destroy the pest is when they just begin to appear and 

 before they become numerous and the leaves are badly 

 curled. This may be done with the ten per cent mix- 

 ture of kerosene or a strong solution of whale-oil soap. 

 The work of destruction may be made more certain by 

 picking off the leaves most curled. 



