52 BULLETIN 395, U. S. DEPARTMENT OF AGRICULTURE. 
less severe than usual, all the sprayed plats gave a commercially satisfactory control 
of these troubles. Plats 1 and 2, however, gave markedly superior results, yielding a 
quantity and quality of fruit which scarcely would have been credited as possible 
when the work was begun in the spring. 
On plat 3, as would be expected, the insect injury was somewhat worse than on plats 
1 and 2, while the scab on plat 4 was materially more apparent than on plats 1 and 2, 
though not quite so conspicuous as on the control. 
On plat 5 scab and curculio were well controlled. Consequently, rot was not very 
abundant, though it developed to a rather serious extent during the severe conditions 
which obtained throughout the latter part of the harvest period, when daily rains 
occurred. The amount of rot which thus appeared was ample to justify the third 
application, as in the case of plats 1 and 2. 
Striking though they are, the tabulated figures do not give a full conception of the 
real contrast between the sprayed and unsprayed fruit. The former was firm, uniform, 
and highly colored, passing excellently through the severe conditions of the picking 
season and carrying to market in good condition. The latter was much inferior in 
color, uniformity, and texture, ripening rapidly and unevenly, and becoming too 
soft for shipment unless picked green. The close picking of the control trees lessened 
the percentage of rot and culls, as the brown-rot fungus attacks the peach most severely 
after the fruit has entered well into the ripening stages. 
These results show (1) that the sulphur paste and self-boiled lime- 
sulphur, respectively, controlled scab and brown-rot in a highly 
satisfactory manner, the fruit of plats treated with the two fungicides 
being of remarkably similar quality, agreeing almost to a per cent in 
each classification (plats 1 and 2) ; (2) that in northern Georgia at 
least two, and preferably three, applications are necessary for the 
satisfactory commercial spraying of the Carman and similar early 
varieties ; (3) that the timing of the application on plats 1 and 2 was 
satisfactory; and (4) that the second application was primarily 
responsible for scab control. 
Plats 9-15: Elberta. 
The summarized results from the more important Elberta plats 
appear in Table X. Certain data which can not be included in the 
table are as follows: 
Supplementary notes. — The fruit of plats 9A and 9B was so similar to that of plat 9 
and the results on plat 11 were so similar to those on plat 12 that no counts were made 
from plats 9 A, 9B, and 11. 
As in the case of the Carman results, the tabulated figures fail to give an adequate 
conception of the superiority of the sprayed over the unsprayed fruit. At first 
glance, it would seem, for instance, that a very considerable amount of scab infection 
had taken place on the sprayed fruit. Such, however, was not the case, the great 
majority of sprayed fruits classified " slightly scabbed" bearing only one to several 
small, inconspicuous infections which could be detected only by critical expert 
examination. Thus, a single scab spot of this type frequently served to classify an 
otherwise perfect fruit as "slightly scabbed." On the other hand, in the case of the 
unsprayed fruit, the "slightly scabbed" specimens usually bordered very closely 
upon the "commercially scabbed" class. Therefore, it is important to note clearly 
that the scab infection on the fruit of all plats which received the second application 
was commercially negligible. 
