Spraying Experiments in Nebraska 27 
Curculio injury on windfalls and picked fruit 
Curculio 
Variety 
Plat 
Total 
fruit 
Worms 
Per cent 
Stings 
Per cent 
Ben Davis f 
Missouri Pippin \ 
1 
check 
20,273 
1,804 
532 
102 
2.62 
5.10 
1,091 
119 
5.38 
6.59 
At Brown ville (table 13), the efficiency of the schedule was 54 
per cent in controlling the larvae, which was nearly as much as for 
the 4-spray schedule at Wymore, but in the control of skin punc- 
tures the efficiency was only 19 per cent. 
Table 14 — Nemaha spray schedule 
Date 
April 23 
May 7 
May 30 
July 3 
Spray 
Cluster-bud 
Petal-fall 
3-weeks 
Second-brood 
Plat 1 
Pb-2-50 
Pb-2-50 
Pb-2-50 
2 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Curculio injury on windfalls and picked fruit 
Plat 
Total fruit 
Curculio 
Per cent 
Ben Davis 
1 
2,180 
59 
2.71 
Winesap 
1 
2,941 
74 
2.52 
Jonathan 
1 
2,751 
76 
2.76 
Total 
7,872 
209 
2.65 
Ben Davis 
2 
1,834 
5 
.27 
Winesap 
2 
1,887 
5 
.26 
Jonathan 
2 
2,751 
8 
.29 
Total 
6,472 
18 
.28 
At Nemaha (table 14), apples containing larvae and those 
injured by punctures were grouped together under one head. 
There were few larvae compared to punctures. No checks were 
left here; hence it is impossible to compute the efficiency of the 
schedule. However, the results indicate, provided the infestation 
was comparable to that at Brown ville (table 13), that a large por- 
tion of the injury may be controlled by the first spray. 
