SPRAYING CALENDAR 



Considp:ring the diversity of the pests which attack 

 fruit trees, and that hardly any one of them may be 

 expected as a certainty in every season and in every 

 part of the country ; and considering, further, that 

 spraying is to be regarded as a remedial, rather than 

 a preventive measure, it is not surprising that no 

 spraying calendar of universal application can be 

 drawn up, and that all that can be attempted in that 

 direction is to set out an ordered list of remedies to 

 be applied at stated times, in the event of those 

 pests against which they are directed making their 

 appearance. 



There are only, at the most, three items in such a 

 list which can claim to be regarded as likely to form 

 part of the annual routine of fruit-growing. The first 

 is winter washing the trees, in order to cleanse the 

 bark ; the second is spraying them in March or April 

 for the destruction of aphides, which are sure to be 

 present, and for young caterpillars of various sorts, 

 which will probably be present ; and the third is 

 spraying with lead arsenate, emulsion, or Bordeaux 

 mixture, after the blossoms have fallen, to complete 

 the destruction of aphides, and to destroy various 

 caterpillars and fungus spores. The second of the 

 three operations here mentioned should be done 



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