40 Nebraska Agricultural Exp. Station, Research Bui. 10 
Table 25 — Florence spray schedule 
Date 
Spray 
April 24 
Cluster-bud 
May 10 
Petal-fall 
June 3 
3-weeks 
July 16 
Second-brood 
Plat 1 Bx 
2 
3 
4 
5 
6 
7 
9 
10 
11 
-3-4-50 
Bx-3-4-50 
Bx-3-4-50 
Bx-3-4-50 
LS-1 . 5-50 
Bx-3-4-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
Bx-3-4-50 
LS-1 . 5-50 
Bx-3-4-50 
Bx-3-4-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
Bx-3-4-50 
LS-1 . 5-50 
LS-1. 5-50 I 
Bx-3-4-50 I 
LS-1. 5-50 I 
Bx-3-4-50 
Bx-3-4-50 
Bx-3-4-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
LS-1 . 5-50 
Bx-3-4-50 
LS-1 . 5-50 
Scab injury on windfalls and picked fruit 
Total 
Per cent 
Spray 
Per cent 
Variety 
Plat 
fruit 
Scab 
scab 
injury 
spray injury 
1 
2,295 
24 
1.C4 
674 
29.37 
2 
1,945 
37 
1.90 
373 
19.18 
3 
2,281 
39 
1.71 
376 
16.48 
4 
1,598 
16 
1.00 
144 
9.01 
Ben Davis 
5 
2,154 
70 
3.25 
172 
7.99 
Winesap 
6 
1,541 
181 
11.74 
111 
7.20 
Northwest 
7 
1,597 
229 
14.34 
116 
7.26 
Greening 
8 
2,265 
138 
6.09 
210 
9.27 
9 
2,490 
224 
9.00 
106 
4.26 
10 
3,252 
1 
.03 
928 
28.54 
11 
1,495 
26 
1.74 
129 
8.63 
check 
3,285 
808 
24.60 
The highest efficiency (96 per cent) secured at Florence 
(table 25) was in plat 5, where Bordeaux was used for the first 
spray and lime sulphur for the three subsequent sprays. Bor- 
deaux used for the first spray gave consistently better results 
than lime sulphur. For the subsequent sprays, however, Bor- 
deaux shows no added advantage. An idea of the approximate 
value of each application was secured by omitting one spray for 
each of the plats. The evidence secured in this way indicates 
that, at this place, the first spray controlled more than 32 per 
cent of the total infection. The petal-fall spray controlled 28 
per cent, the 3-weeks spray controlled 16 per cent, and the July 
spray controlled 24 per cent. These figures are only approxi- 
mately correct, since it is impossible to determine how long a 
single application will be effective, but the results certainly show 
the relative value of the different applications for the one season. 
