PRINCIPLES OF SPRAYING 



cently come into such general use as practically 

 to replace the old sprays. These are lime and 

 sulphur as the fungicide and partial insecticide 

 and arsenate of lead as a partial insecticide. 



The necessity for and the advisability of 

 spraying have already been pointed out. There 

 is an increasing demand for fine fruit the supply- 

 ing of which Is possible only with thorough 

 spraying. In the humid East especially the 

 competition of more progressive sections In the 

 West Is demanding more and better spraying. 

 There Is no cure-all In this process. It does 

 not make a tree more fruitful except as It Im- 

 proves Its general health, but It does bring a 

 larger percentage of the fruit to perfection. 

 Certain knowledge Is fundamental; the grower 

 must know what he Is spraying for, when and 

 with what to combat It and how to accom- 

 plish the desired result most effectively. 



Spraying is an Insurance against anticipated 

 troubles with the fruit, and the best and most 

 successful growers are those most completely 

 Insured. It has many general advantages also. 

 It stimulates the grower to a greater Interest 

 In his business because of the extra knowledge 

 and skill required. It compels thoroughness. 

 It necessitates spending money, therefore a re- 

 109 



