PEACH SCAB AND ITS CONTROL. 49 
Experiments in 1912. 
treatment. 
A summary of the treatments of the individual plats and results 
therefrom is given in Table X. No plat contained less than 40 trees. 
Table X. — Summary of treatments and results in spraying experiments, Cornelia, Ga., 
1912. 
Treatments. 
Results. 
Spray used. 1 
Dates of 
application. 2 
1 
u 
O 
s 
= 
O 
O 
3 
1$ 

Scabbed — 3 
i 

\ ariety 
and plat. 
en 
C3.0 
a- 
go 
o 
1 
as 
*§ 
I 
a 


>> 
1 
s 

EH 
6 
3 
"5 
1 
Carman: 
1 
2 
3. .. 
AUlime... 
...do 
AUSp 
AU-S-b 1-s. 
...do 
Sp 
S-bl-s... 
...do 
...do 
(1) Apr. 30 
(2) May 13-14 
(3) June 1 
(1) Apr. 23-24 
(2) May 15-16 
(3) July 2 
(1) Apr. 23 
(2) May 14 
(3) June 18 
f 10 
10 
5,598 
7,941 
P.c. 
7.3 
8.2 
P.c. 
0.2 
.4 
P.c. 


P.c. 
7.5 
8.6 
P.c. 
5.5 
4.2 
P.c. 
94.5 
95.8 
4 

...do 
AUS-b 1-s. 
6... 
10 7. a59 
51.4 
39.7 
35.3 
3.4 
.9 

87.3 
43.1 
22.7 
2.5 
77.3 
Elberta: 
9 
9A .. 
AUlime... 
...do 
...do 
...do 
AUSp 
...do 
...do.« 
"AUSp."."."! 
AU-S-b 1-s. 
"AUS-M-si 
...do 
sp 
...do 
...do.<... 
sp- 
...do 
S-bl-s... 
...do 
...do 
...do 
10 
2,396 
97.5 
9B 
10 
11 . 
10 
5,791 
45.1 
52.2 
.5 
97.8 
5.0 
95.0 
12 
6 
3 994 
65.4 
47.4 
63.3 
6.2 
49.2 
5.5 
.03 
1.2 
.05 
71.6 
97.8 
68.8 
7.6 
8.3 
2.8 
92.4 
13 
14 
14A 
AUlime... 
...do 
...do 
Control 
I 10,5.937 
; 10:7,620 
91.7 
97.2 
15 
1 114,400 
32.7 
63.1 
3.1 
98.9 
31.6 
68.4 
15A 
...do 
BeUe: 
16 
AUS-b 1-s. 
S-bl-s...' 
...do 
sp- , 
...do 
17 
18 
AUlime... 
" AUSp." '..'. 
7 
2,015 
35.9 
60.0 
3.3 
99.2 
5.9 
94.1 
19 
AUlime. . . 
20 
20A 
...do 
...do 
...do 
AUS-b 1-s. 
...do 
AUSp 
S-bl-s... 
sp- 
...do 
7 
3,239 
68.5 
7.2 
.2 
75.9 
2.8 
97.2 
21 
22 
7i2.529 
7I2:077 
60. 2 6. 1 
24.6 71.2 
.03 
3.3 
66.3 
99.1 
3.7 
9.3 
96.3 
90.7 
1 Abbreviations for sprays used: Al=Arsenate of lead paste (diplumbic), 1J pounds in 50 gallons. 
Lime=Stone lime, 3 pounds in 50 gallons. Sp= A proprietary sulphur paste, 5 pounds in 50 gallons (except 
on plat 9B) a preparation consisting of finely divided sulphur (45 to 55 per cent sulphur guaranteed) with a 
small amount of organic adhesive material in suspension in water. S-b l-s= Self-boiled lime-sulphur, 8 
pounds of Lime and 8 pounds of sulphur in 50 gallons. 
2 The treatments were made, as nearly as feasible, (1) 10 days after the petals fell, (2) one month after the 
petals fell, and (3) one month before tho fruit ripened. 
3 Slightly scabbed fruits included those bearing from one to a few scattered, inconspicuous spots; com- 
mercially scabbed, those sufficiently marred to detract from their market value but not to render them 
unmerchantable; and badly scabbed, those rendered nearly or wholly unmerchantable by excessive scab 
infection. 
* Sulphur paste, 8 pounds in 50 gallons. 
The condition of the experimental plats is briefly described as fol- 
lows: 
Plats 1-6. — Eight-year-old Carman trees, well grown, but badly neglected and 
suffering from lack of pruning, cultivation, and fertilization. Fertile clay-loam soil. 
Orchard elevated and slightly rolling, with excellent air and surface drainage. Had 
received an imperfect winter application of lime-sulphur. Fairly well pruned in 
early spring and cultivated throughout the season. Crop good. 
