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VEGETABLE GROWING PROJECTS 



thoroughly covered with the spray material. A film is all that is 

 needed. What runs off is wasted. The manner of applying the 

 material will determine most often the success or failure of the 

 enterprise. A potato grower can get good results with an atom- 

 izer or knapsack type of outfit if he takes the pains. The trouble 

 is that it is neither efficient nor economical. Most growers are 



I'lG. S6. — A spraying machine doing efiective work. High pressiire (200 pounds), 

 proper nozzle adjustment, and plenty of material (100 gallons to the acre). 



not willing to carry out and apply by hand one hundred gallons 

 of Bordeaux mixture, per acre, per application. The most eco- 

 nomical control of the foliage diseases is accomplished by high 

 pressure and plenty of material. 



Bordeaux mixture is generally employed to control diseases 

 and is easy to make either by the gallon or by the hundred gal- 

 lons. All it requires is (a) copper sulphate (blue stone), (6) stone 

 lime, caustic lime (lump lime), and (c) water. Place two 50-gallon 



