32 
BULLETIN 1032, U. S. DEPARTMENT OF AGRICULTURE. 
plane. In this position the uprights would be bent over slightly and 
the tips as well as some of the lower leaves given a thorough wetting. 
As seen in Table 4, three applications with this type of nozzle on 
the Howe variety (plat D) resulted in an increase of 58.95 bushels 
per acre over check, and 84.25 per cent of the berries examined were 
free from fireworm injury. Four applications on the same variety 
on the adjoining plat (plat C) resulted in a gain in yield of only 
40.88 bushels over the check, doubtless because of the thin setting of 
blossoms on this plat, but 93.05 per cent of the fruit examined from 
the sample areas was free from fireworm injury. 
Fig. 14. — Spr; 
;un used in spraying experimental plats. Shows size of stream of spray- 
used, with medium-sized disk at full capacity. 
On the McFarlin variety (plat F) three applications gave a gain of 
109.62 bushels per acre over the untreated vines, 77.45 per cent of the 
examined fruit being free from fireworm injury. Four applications 
(plat E) gave better results, a gain of 161.85 bushels over the un- 
treated vines, 87.72 per cent of the examined fruit being sound. 
The Three Types of Nozzles Compared as to Economy of Time and Material. 
With the Bordeaux outfit (fig. 12) it took about 1|- hours to spray 
an acre, an average of 609 gallons being necessary for a thorough 
application. It was necessary to walk about 24 times across the 
acre, which was in the form of a square. With the mist outfit 
(fig. 13), it took about 1 hour to spra}^ an acre, 438 being the average 
