XII 

 SPRAYING 



The practice of spraying is still somewhat new. 

 Many excellent men now living have never seen the 

 work done, and a good many who still have fruit 

 trees think the work unnecessary. Successful fruit 

 growers, however, know it to be indispensable. No 

 time need be spent now arguing in favor of spray- 

 ing. The San Jose scale and the peach leaf curl 

 keep up that argument all the while. And their 

 arguments are convincing, irrefutable. 



We may observe, however, that spraying will 

 never cure any disease. It is only preventive in its 

 action. Practically the same situation exists with 

 respect to insects; for though the scale can be 

 brought under control after it is pretty well estab- 

 lished, the rule is that any fight against insects, to 

 be successful, must be well under way before the 

 insects become established. 



SPRAYING MACHINERY 



A Spraying outfit consists of a tank of some sort, 

 a pump, a nozzle or nozzles and connections. As 

 in every technical undertaking it is important that 

 each part be carefully chosen and properly adjusted 

 to all the other parts. 



A good tank holding loo to 200 gallons can be 

 bought of the manufacturers of spray machinery 

 cheaper than it can be made at home. It is suited 

 to use with a power sprayer or with the heavier 

 equipments of hand pumps. For small outfits a bar- 



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