404 



Bulletin 266. 



The mixtures were made carefully and according to the most re- 

 liable directions. The solution was applied with the vineyard sprayer 

 manufactured by the E. C. Brown Co., Rochester, N, Y., and under 

 a pressure of 140 pounds. Great care was taken to apply the mixture 

 thoroughly and evenly. Realizing that many of the failures in spraying 



Photo. Aug. 31, 1908 



Fig. 105. — Sprayed. Small part of vine shown in Fig. 102, from Experimental 



Plat No. 4 



are due to careless applications, the experimenters determined to elimi- 

 nate this factor. The thoroughness of the application was tested until 

 satisfactory results were secured. A part of a row was sprayed and 

 then an examination made of the foliage and clusters. If unsatisfactory 

 the nozzles and pressure were changed and another trial made. Tests 

 were made in this way until the experimenters were convinced that the 

 application was thorough and yet no mixture was being wasted. 



