CONTROL OF PEACH DISEASES IN GEORGIA 
27 
Table 18. — Summary of results of experiments in peach dusting and spraying at 
Fort Valley, Ga., in 1924; fruit harvested from record trees of the Elberta variety 
Percentage of total fruit having- 
* 
2 
Percentage 
o 
| 
-3 
2 
fruit as 
graded be- 
Curculio larvae 
and— 
e 
3-m 
C3 
3 
•faTJ 
fore being 
opened for 
examina- 
Plat 
3 
"3 
u 
a 
3 
a 
"3 
O 
SB 
> 
o 
o 
"3 
o 
SB 
> 
o 
>> 
13 
o 
o 
i? 
£1 
8 
en 
i 
1 
§5 
"-{3 o 
° 3 
<2 3 
.9 a 
+j 2 
o~ 
\-< 
3» 
£.2 
rt PI 
C3 3 
-s ° 
O CO 
O 
<» 
bo 
C3 
tion 
9 
23 
(-4 
,2 
si 
1 
3 
3 
o 
u 
3 
a 
o 
1 
3 
o 
H 
3 
o 
o 
Xi 
i 
fl 
1 
a 
1 
03 -g 
C8 
3 
2 
H 
U 
pq 
CO 
O 
m 
GO 
PQ 
W 
CO 
pq 
pq 
CQ 
Pm 
U 
I 
6,329 
21.9 
6.9 
23.3 
13.4 
4.7 
14.2 
0.1 
0.3 
7.6 
1.3 
0.4 
0.1 
57.9 
83.0 
17.0 
II 
7,238 
28 fi 
5.1 
39 
13,0 
1 7 
22,8 
5 
5 
13 6 
1 5 
3 
.6 
45 5 
81.0 
19.0 
III 
5,636 
6,316 
30.7 
8.4 
44.9 
13.7 
3.1 
26.3 
.8 
.4 
14.3 
2.6 
.6 
.9 
37.3 
78.8 
21.2 
IV.. 
24.4 
3.5 
38.2 
12.2 
1.2 
25.1 
.2 
.1 
11.2 
1.3 
.4 
.3 
48.0 
86.3 
13.7 
v.. 
4,163 
54.1 
30.3 
89.7 
1.9 
3.5 
27.9 
4.0 
.6 
37.0 
11.6 
1.4 
9.2 
2.9 

100.0 
1 Check plat; not sprayed or dusted. 
Table 19. — Number of peaches dropping from Elberta peach trees and percentage of 
them infested by curculio in experimental orchard at Fort Valley, Ga., 1924 
Plat 
Total 
number of 
drops 
Total per- 
centage 
of drops 
infested by 
curculio 
I. _ 
6,596 
6,812 
6,823 
6,872 
4,862 
6.2 
13.0 
8.5 
8.4 
64.8 
II 
III 
IV.... 
V 
Table 20. — Commercial results of fruit from all trees in each plat of the Elberta 
variety, peach spraying and dusting experiments, Fort Valley, Ga., 1924 
Plat 
Number of 
trees in 
plat 
Average 
merchant- 
able fruit 
per tree 
(expressed 
in cups; 
6 cups 
equal 1 
crate) 
Average 
cull fruit 
per tree 
(expressed 
in cups; 
6 cups 
equal 1 
crate) 
j 
151 
163 
158 
164 
35 
17.6 
21.3 
16.4 
18.9 
3.7 
5.0 
4.4 
3.0 
25.2 
II 
III-. 
rv 
v 
As stated in the discussion of the results with Hiley peaches in 
1924, unusually high temperatures prevailed in Georgia just before 
the harvest of Elberta peaches. These, accompanied by almost 
daily showers, greatly hastened and facilitated the development of 
the first generation of adult'curculios and the production of a second 
brood. The check, or untreated, plat in the Elberta experimental 
