XV 



SOLUTIONS FOR SPRAYING 



HUNDREDS, even thousands, of spray solutions have 

 been introduced during the last 15 years. Several of 

 them have met with temporary favor, but for practical 

 field work the list is now reduced to three or four. 

 Only the most important ones need be given here, as 

 this is a book for the practical worker, not for the ex- 

 perimenters. 



The making of almost any spray solution is an ex- 

 acting task. Often it is dirty and highly disagreeable 

 also. This applies particularly to bordeaux mixture 

 and the lime-sulphur spray, which are probably the 

 two most important sprays now in use. On account 

 of this disagreeable nature of the work hired men, and 

 even orchard owners themselves, are sometimes in- 

 clined to slight the task. They seek short cuts and 

 shabby improvements always to the detriment of the 

 spraying. It might as well be accepted as a funda- 

 mental fact at the outset that spraying is hard, dirty 

 work, and that it must be done with great care in spite 

 of the drawbacks. Close attention should be paid to 

 the minutest details in making up and putting on spray 

 mixtures. 



BORDEAUX MIXTURE 



By all means the most important fungicide which we 

 use is bordeaux mixture. This has superseded prac- 

 tically every other fungicide yet introduced. The 



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