PESTS 



To the following description of the commoner pests 

 which fruit growers have to contend with, there has 

 been added in each case the remedy which appears 

 to be most efficacious, reference being given to the 

 numerals by which the various substances have been 

 designated in the above list of materials. 



Where " caustic emulsions " for work in winter are 

 mentioned, one or other of the following paraffin 

 emulsions, mixed with caustic soda, may be used — 



lob. Emulsion made with soap. 



IOC. Emulsion made with copper sulphate. 



lod. Emulsion made with iron sulphate. 



But in cases where a fungicidal, as well as an 

 insecticidal and detergent action is required, loc is 

 the one which should be used. All these caustic 

 emulsions contain 6 per cent, of paraffin and 2 to 2^ 

 per cent, of caustic soda. 



Where " weak emulsions " for work in summer (with- 

 out caustic soda) are mentioned, the following may be 

 used; but it must be borne in mind that the experiments 

 on which most of the recommendations for their use 

 are based, have been made with emulsions containing 

 a high boiling paraffin oil (solar distillate), and that if 



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