Spraying Experiments in Nebraska 
15 
capacity was used. Here the efficiency for the two sprays was 77 
per cent. SHghtly more than 50 per cent of the worms entered at 
the calyx. This orchard had never been sprayed before. 
It was planned to apply four sprays, but the machinery was not 
received in time for the first spray and water could not be obtained 
for the second-brood spray. 
Table 4 — Florence spray schedule 
Date 
Spray 
April 24 
Cluster-bud 
May 10 
Petal-fall 
June 3 
3-weeks 
July 16 
Second-brood 
1 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Codling moth injury on windfalls and picked fruit 
Variety 
Plat 
Total fruit 
Codling moth 
Per cent 
Ben Davis f 
Winesap \ 
Jonathan [ 
1 
check 
1,598 
3,285 
203 
2,286 
12.70 
69.60 
At Florence (table 4), a power sprayer of 10-gallons-to-the- 
minute capacity, similar to fig. 21, was used. The petal-fall spray 
was applied with Bordeaux nozzles at 225 pounds pressure. The 
efficiency of the schedule was 82 per cent. Slightly more than 43 
per cent of the larvae entered at the calyx. This orchard had never 
been sprayed before. 
Table 5 — Lincoln spray schedule 
Date 
Spray 
April 25 
Cluster-bud 
May 9 
Petal-fall 
June 2 
3-weeks 
July 15 
Second-brood 
Plat 1 
Pb-3-50 
Pb-3-50 
Pb-3-50 
Pb-3-50 
Pb-3-50 
Pb-3-50 
2 
3 
Pb-3-50 
Pb-3-50 
Codling moth injury on windfalls and picked fruit 
Variety 
Plat 
Total fruit 
Codling moth 
Per cent 
Ben Davis 
V/inesap < 
Jonathan 
1 
2 
3 
check 
2,549 
2,234 
3,762 
1 3,530 
273 
396 
501 
1,172 
10.71 
17.73 
13.32 
33.20 
