3i2 Currant Aphides. 



The most successful remedies for plant lice are paraffin 

 emulsion and quassia wash. Paraffin emulsion is prepared 

 in the following way : — Mix equal porticns of boiling soft 

 soap solution and paraffin together, then churn them up by 

 means of a force pump until a creamy emulsion is produced. 

 When required for use, mix the concentrated soft soap and 

 paraffin solution with twenty times its bulk of soft water. 



Quassia wash may be substituted for paraffin emulsion, but 

 it is rather more troublesome to prepare. The usual formula 

 is as follows : — Extract of sib. to iolb. of boiled quassia 

 chips; 61bs. to 8lbs. of soft soap; 100 gallons of water. 

 The quassia should be boiled separately for two hours in just 

 sufficient water to keep it liquid. The soft soap should be 

 dissolved in water and then added to, and well mixed with, 

 the quassia, the whole being then placed in, and mixed 

 with, 100 gallons of soft water. 



If the fruit is fairly forward it is no!; advisable to employ 

 the paraffin emulsion, as it might affect the flavour. 



Early spraying of the plantations with paraffin emulsion is 

 the correct treatment and will prevent considerable loss, which 

 cannot be repaired when once the lice have got a firm 

 hold.* 



Copies of this cuticle may be obtained free of charge and post free on application to 

 the Secretary, Board of Agriculture, 4, Whitehall I lace, London, S. IV. 



