4o8 Bulletin 266. 



The number of applications and time of each are as follows: 



Until the middle of July all applications were made with Bordeaux 

 at the different strengths indicated. (Fig. 107.) After the middle 

 of July, ammoniacal copper carbonate was used. The purpose of this 

 was to avoid discoloring the berries. If Bordeaux had been applied 

 for the last sprayings the fruit would have shown serious discolorations 

 at picking time. Ammoniacal copper carbonate is a colorless spray 

 and by its use late in the season discoloring is avoided. It is probably 

 nearly as effective as Bordeaux, although this is one of the questions 

 which we have not yet worked out and which we expect to try next year. 



The plats were picked September 25th to October loth. All the 

 fruit from each plat was picked, brought to the packing house and 

 weighed. This gave the net (total) weight as recorded in the first column 

 of figures of the table on page 405, or as represented by the first bar for 

 each plat in Fig. 108. The grapes were then sorted into three grades: 

 firsts, wine and rotten. The firsts were extra fine in quality and were 

 packed and shipped in pony baskets. The wine grapes contained the 

 scraggly clusters, the crushed berries and the single berries which had 

 fallen from the bunches. They contained no rotten berries. The rotten 

 berries included the dried, hard berries which were affected with the 

 Rot. The weight of firsts is given in the second column of the table 

 and represented by the second bar in the diagram. (Fig. 108.) The 

 weight of wine is given in the third column of the table and represented 

 by the third bar in the diagram. The weight of rotten berries is repre- 

 sented by the fourth column of the table and shown by the fourth bar 

 in the diagram. The fifth, sixth and seventh columns of figures in the 

 table represent, of the total weight harvested, the per cent of firsts, 

 wine and rotten, respectively. 



